RESUMO
Multiple severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants continue to evolve carrying flexible amino acid substitutions in the spike protein's receptor binding domain (RBD). These substitutions modify the binding of the SARS-CoV-2 to human angiotensin-converting enzyme 2 (hACE2) receptor and have been implicated in altered host fitness, transmissibility, and efficacy against antibody therapeutics and vaccines. Reliably predicting the binding strength of SARS-CoV-2 variants RBD to hACE2 receptor and neutralizing antibodies (NAbs) can help assessing their fitness, and rapid deployment of effective antibody therapeutics, respectively. Here, we introduced a two-step computational framework with 3-fold validation that first identified dissociation constant as a reliable predictor of binding affinity in hetero- dimeric and trimeric protein complexes. The second step implements dissociation constant as descriptor of the binding strengths of SARS-CoV-2 variants RBD to hACE2 and NAbs. Then, we examined several variants of concerns (VOCs) such as Alpha, Beta, Gamma, Delta, and Omicron and demonstrated that these VOCs RBD bind to the hACE2 with enhanced affinity. Furthermore, the binding affinity of Omicron variant's RBD was reduced with majority of the RBD-directed NAbs, which is highly consistent with the experimental neutralization data. By studying the atomic contacts between RBD and NAbs, we revealed the molecular footprints of four NAbs (GH-12, P2B-1A1, Asarnow_3D11, and C118)-that may likely neutralize the recently emerged Omicron variant-facilitating enhanced binding affinity. Finally, our findings suggest a computational pathway that could aid researchers identify a range of current NAbs that may be effective against emerging SARS-CoV-2 variants.
Assuntos
COVID-19 , SARS-CoV-2 , Humanos , SARS-CoV-2/genética , Consenso , Anticorpos NeutralizantesRESUMO
Elucidation of the molecular pathogenesis underlying virus-host interactions is important for the development of new diagnostic and therapeutic strategies against highly pathogenic avian influenza (HPAI) virus infection in chickens. However, the pathogenesis of HPAI virus in chickens is not completely understood. To identify the intracellular signaling pathways and critical host proteins associated with influenza pathogenesis, we analyzed the lung proteome of a chicken infected with HPAI H5N1 virus (A/duck/India/02CA10/2011/Agartala). Mass spectrometry data sets were searched against the chicken UniProt reference database. At the local false discovery rate level of 5%, a total of 3313 proteins with the presence of at least one unique peptide were identified in the chicken lung proteome datasets. Differential expression analysis of these proteins showed that 247 and 1754 proteins were downregulated at 12 h and 48 h postinfection, respectively. We observed expression of proteins of the predominant signaling pathways, including Toll-like receptors (TLRs), retinoic acid-inducible gene I-like receptors (RLRs), NOD-like receptors (NLRs), and JAK-STAT signaling. Activation of these pathways is associated with the cytokine storm effect and thus may be the cause of the severity of HPAI H5N1 infection in chickens. We also observed the expression of myeloid differentiation primary response protein (MyD88), inhibitor of nuclear factor kappa B kinase subunit beta (IKBKB), interleukin 1 receptor associated kinase 4 (IRAK4), RELA proto-oncogene NF-κB subunit (RELA), and mitochondrial antiviral signaling protein (MAVS), which are involved in critical signaling pathways, as well as other, less-commonly identified proteins such as hepatocyte nuclear factor 4 alpha (HNF4A), ELAV-like RNA binding protein 1 (ELAVL1), fibronectin 1 (FN1), COP9 signalosome subunit 5 (COPS5), cullin 1 (CUL1), breast cancer type 1 susceptibility protein (BRCA1), and the FYN proto-oncogene Src family tyrosine kinase (FYN) as main hub proteins that might play important roles in influenza pathogenesis in chickens. In summary, we identified the signaling pathways and the proteomic determinants associated with disease pathogenesis in chickens infected with HPAI H5N1 virus.
Assuntos
Virus da Influenza A Subtipo H5N1 , Influenza Aviária , Animais , Galinhas , Virus da Influenza A Subtipo H5N1/genética , Influenza Aviária/genética , Pulmão , ProteômicaRESUMO
BACKGROUND: Obesity and female sexual dysfunction (FSD) are prevalent conditions, and both are associated with significant adverse effects on health and well-being. AIM: To investigate the association between body mass index and FSD, as well as potential moderators. METHODS: This cross-sectional study was performed by analyzing medical records of 6,688 women seeking consultation for menopause-related or sexual health-related concerns at women's health clinics at Mayo Clinic Rochester, MN, and Scottsdale, AZ, between May 1, 2015, and September 15, 2019. OUTCOMES: Female sexual function was assessed by the Female Sexual Function Index, and sexual distress was assessed by the Female Sexual Distress Scale-Revised. RESULTS: Being overweight or obese was associated with a lack of sexual activity. Among sexually active women, those who were overweight or obese had lower Female Sexual Function Index total scores and sexual function domain scores (indicating worse sexual function), including sexual arousal, lubrication, satisfaction, orgasm, and pain, and higher levels of sexual distress than those with normal weight. However, on multivariable analysis, these associations were found to be mediated by other factors, including age, level of education, reproductive stage, medication use, and mood disturbances, which are known to impact body weight and sexual function in women. CLINICAL IMPLICATIONS: Overweight and obesity were associated with sexual inactivity and greater odds of having FSD, which should prompt proactive assessment of sexual function. STRENGTHS AND LIMITATIONS: The strengths of this study include the large cohort size and assessment of sexual problems in addition to sexual distress, a key component of the definition of sexual dysfunction. This study also took into account multiple potential moderating factors. Limitations include the cross-sectional design, which precludes determination of causality as well as lack of diversity in the cohort, potentially limiting generalizability of results. In addition, sexual function was not assessed in women reporting no recent sexual activity, which may confound results. CONCLUSION: Overweight/obesity and FSD are highly prevalent conditions, which appear to be indirectly associated. These results highlight the need to identify and address FSD in all overweight and obese women, with particular attention to potential contributing factors. Faubion SS, Fairbanks F, Kuhle CL, et al. Association Between Body Mass Index and Female Sexual Dysfunction: A Cross-sectional Study from the Data Registry on Experiences of Aging, Menopause, and Sexuality. J Sex Med 2020;17:1971-1980.
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Disfunções Sexuais Psicogênicas , Envelhecimento , Índice de Massa Corporal , Estudos Transversais , Feminino , Humanos , Menopausa , Sistema de Registros , Comportamento Sexual , Disfunções Sexuais Psicogênicas/epidemiologia , Disfunções Sexuais Psicogênicas/etiologia , Sexualidade , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Dehydroepiandrosterone (DHEA) is helpful for treating vaginal symptoms. This secondary analysis evaluated the impact of vaginal DHEA on hormone concentrations, bone turnover, and vaginal cytology in women with a cancer history. METHODS: Postmenopausal women, diagnosed with breast or gynecologic cancer, were eligible if they reported at least moderate vaginal symptoms. Participants could be on tamoxifen or aromatase inhibitors (AIs). Women were randomized to 3.25 versus 6.5 mg/day of DHEA versus a plain moisturizer (PM) control. Sex steroid hormone levels, biomarkers of bone formation, vaginal pH, and maturation index were collected at baseline and 12 weeks. Analysis included independent t tests and Wilcoxon rank tests, comparing each DHEA arm with the control. RESULTS: Three hundred forty-five women contributed evaluable blood and 46 contributed evaluable cytology and pH values. Circulating DHEA-S and testosterone levels were significantly increased in those on vaginal DHEA in a dose-dependent manner compared to PM. Estradiol was significantly increased in those on 6.5 mg/day DHEA but not in those on 3.25 mg/day DHEA (p < 0.05 and p = 0.05, respectively), and not in those on AIs. Biomarkers of bone formation were unchanged in all arms. Maturation of vaginal cells was 100% (3.25 mg/day), 86% (6.5 mg/day), and 64% (PM); pH decreased more in DHEA arms. CONCLUSION: DHEA resulted in increased hormone concentrations, though still in the lowest half or quartile of the postmenopausal range, and provided more favorable effects on vaginal cytology, compared to PM. Estrogen concentrations in women on AIs were not changed. Further research on the benefit of vaginal DHEA is warranted in hormone-dependent cancers.
Assuntos
Desidroepiandrosterona/administração & dosagem , Vagina/efeitos dos fármacos , Administração Intravaginal , Inibidores da Aromatase/administração & dosagem , Neoplasias da Mama/sangue , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/patologia , Sulfato de Desidroepiandrosterona/sangue , Estradiol/sangue , Feminino , Neoplasias dos Genitais Femininos/sangue , Neoplasias dos Genitais Femininos/tratamento farmacológico , Neoplasias dos Genitais Femininos/patologia , Hormônios Esteroides Gonadais/sangue , Humanos , Pessoa de Meia-Idade , Osteogênese/efeitos dos fármacos , Pós-Menopausa , Tamoxifeno/administração & dosagem , Testosterona/sangue , Vagina/patologiaRESUMO
BACKGROUND: Equine influenza is a major health problem of equines worldwide. The polymerase genes of influenza virus have key roles in virus replication, transcription, transmission between hosts and pathogenesis. Hence, the comprehensive genetic and codon usage bias of polymerase genes of equine influenza virus (EIV) were analyzed to elucidate the genetic and evolutionary relationships in a novel perspective. RESULTS: The group - specific consensus amino acid substitutions were identified in all polymerase genes of EIVs that led to divergence of EIVs into various clades. The consistent amino acid changes were also detected in the Florida clade 2 EIVs circulating in Europe and Asia since 2007. To study the codon usage patterns, a total of 281,324 codons of polymerase genes of EIV H3N8 isolates from 1963 to 2015 were systemically analyzed. The polymerase genes of EIVs exhibit a weak codon usage bias. The ENc-GC3s and Neutrality plots indicated that natural selection is the major influencing factor of codon usage bias, and that the impact of mutation pressure is comparatively minor. The methods for estimating host imposed translation pressure suggested that the polymerase acidic (PA) gene seems to be under less translational pressure compared to polymerase basic 1 (PB1) and polymerase basic 2 (PB2) genes. The multivariate statistical analysis of polymerase genes divided EIVs into four evolutionary diverged clusters - Pre-divergent, Eurasian, Florida sub-lineage 1 and 2. CONCLUSIONS: Various lineage specific amino acid substitutions observed in all polymerase genes of EIVs and especially, clade 2 EIVs underwent major variations which led to the emergence of a phylogenetically distinct group of EIVs originating from Richmond/1/07. The codon usage bias was low in all the polymerase genes of EIVs that was influenced by the multiple factors such as the nucleotide compositions, mutation pressure, aromaticity and hydropathicity. However, natural selection was the major influencing factor in defining the codon usage patterns and evolution of polymerase genes of EIVs.
Assuntos
Códon/genética , DNA Polimerase Dirigida por DNA/genética , Evolução Molecular , Vírus da Influenza A Subtipo H3N8/enzimologia , Vírus da Influenza A Subtipo H3N8/genética , Filogenia , Seleção GenéticaRESUMO
The study was designed to characterize and compare chicken bone marrow and peripheral blood monocyte derived dendritic cells (chBM-DC and chMoDC) and to evaluate inflammatory cytokine and chemokine alterations in response upon LPS stimulation. Typical morphology was observed in DCs from 48h of culture using recombinant chicken GM-CSF and IL-4. Maturation of DCs with LPS (1µg/ml) showed significant up regulation of mRNA of surface markers (CD40, CD80, CD83, CD86, MHC-II and DC-LAMP (CD208)), pro-inflammatory cytokines (IL-1ß, IL-6, TNF-α (LITAF)), iNOS, chemokine CXCli2 and TLRs4 and 15. Basal level of TLR1 mRNA expression was higher followed by TLR15 in both DCs irrespective of their origin. Expression of iNOS and CXCLi2 mRNA in mature DCs of both origins were higher than other surface molecules and cytokines studied. Hence, its level of expression can also be used as an additional maturation marker for LPS induced chicken dendritic cell maturation along with CD83 and CD40. LPS matured DCs of both origins upregulated IL-12 and IFN-γ. Based on CD40 and CD83 mRNA expression, it was observed that LPS induced the maturation in both DCs, but chMoDCs responded better in expression of surface markers and inflammatory mediator genes.
Assuntos
Medula Óssea/metabolismo , Galinhas/metabolismo , Citocinas/metabolismo , Células Dendríticas/metabolismo , Inflamação/metabolismo , Monócitos/metabolismo , Animais , Antígenos CD/metabolismo , Biomarcadores/metabolismo , Medula Óssea/efeitos dos fármacos , Diferenciação Celular/efeitos dos fármacos , Quimiocina CXCL2/metabolismo , Células Dendríticas/efeitos dos fármacos , Interleucina-12/metabolismo , Interleucina-1beta/metabolismo , Interleucina-4/metabolismo , Interleucina-6/metabolismo , Lipopolissacarídeos/farmacologia , Monócitos/efeitos dos fármacos , Óxido Nítrico Sintase Tipo II/metabolismo , RNA Mensageiro/metabolismo , Receptor 4 Toll-Like/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , Regulação para Cima/efeitos dos fármacosRESUMO
Emergence of antiviral resistance among H5N1 avian influenza viruses is the major challenge in the control of pandemic influenza. Matrix 2 (M2) inhibitors (amantadine and rimantadine) and neuraminidase inhibitors (oseltamivir and zanamivir) are the two classes of antiviral agents that are specifically active against influenza viruses and are used for both treatment and prophylaxis of influenza infections. Amantadine targets the M2 ion channel of influenza A virus and interrupts virus life cycle through blockade of hydrogen ion influx. This prevents uncoating of the virus in infected host cells which impedes the release of ribonucleoprotein required for transcription and replication of virion in the nucleus. The present study was carried out to review the status of amantadine resistance in H5N1 viruses isolated from India and to study their replicative capability. Results of the study revealed resistance to amantadine in antiviral assay among four H5N1 viruses out of which two viruses had Serine 31 Asparagine (AGT-AAT i.e., S31N) mutation and two had Valine 27 Alanine (GTT-GCT i.e., V27A) mutation. The four resistant viruses not only exhibited significant difference in effective concentration 50% (EC50) values of amantadine hydrochloride from that of susceptible viruses (P < 0.0001) but also showed significant difference between two different types (S31N and V27A) of mutant viruses (P < 0.05). Resistance to amantadine could also be demonstrated in a simple HA test after replication of the viruses in MDCK cells in presence of amantadine. The study identifies the correlation between in vitro antiviral assay and presence of established molecular markers of resistance, the retention of replicative capacity in the presence of amantadine hydrochloride by the resistant viruses and the emergence of resistant mutations against amantadine among avian influenza viruses (H5N1) without selective drug pressure.
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Amantadina/farmacologia , Antivirais/farmacologia , Doenças das Aves/virologia , Farmacorresistência Viral , Virus da Influenza A Subtipo H5N1/efeitos dos fármacos , Virus da Influenza A Subtipo H5N1/isolamento & purificação , Animais , Aves , Índia , Virus da Influenza A Subtipo H5N1/classificação , Virus da Influenza A Subtipo H5N1/genéticaRESUMO
The recurrent circulation of highly pathogenic avian influenza (HPAI) H5N1 in Indian poultry since 2006 resulted in emergence of the viruses of distinct antigenic clades of haemagglutinin (HA) with the majority of the H5N1 outbreaks since 2011 belonging to clade 2.3.2.1. The present study was aimed to characterize the antigenic profile of a collection of H5N1 HPAI viruses of clade 2.3.2.1 isolated in India by applying antigenic cartography, serological data and phylogenetic analysis. Eleven H5N1 viruses (2 of clade 2.2 and 9 of clade 2.3.2.1) were selected based on genetic analysis and were further characterized by antigenic cartography analysis based on cross HI (hemagglutination inhibition) data. This study highlights the intercladal antigenic differences between clades 2.3.2.1 and 2.2 and the intracladal antigenic divergence among the clade 2.3.2.1 viruses. Five viruses of clade 2.3.2.1 were also studied for analysis of glycosylation pattern of Hemagglutinin (HA) gene and the growth kinetics analysis in MDCK cells in which the viruses CL03485/H5N1 and 03CL488/H5N1 showed better replication kinetics than other viruses. The study presents a baseline data of antigenicity and other factors that can be used in the selection of suitable H5 vaccine strains or HA donor viruses to develop H5 vaccine strains by reverse genetics or other methods for control of currently circulating H5N1 viruses in Indian region.
Assuntos
Antígenos Virais/análise , Variação Genética , Genótipo , Virus da Influenza A Subtipo H5N1/classificação , Virus da Influenza A Subtipo H5N1/imunologia , Influenza Aviária/virologia , Animais , Galinhas , Cães , Índia , Virus da Influenza A Subtipo H5N1/genética , Virus da Influenza A Subtipo H5N1/isolamento & purificação , Influenza Aviária/epidemiologia , Células Madin Darby de Rim Canino , Filogenia , Doenças das Aves Domésticas , Cultura de VírusRESUMO
Malignant catarrhal fever (MCF) is a fatal herpesvirus infection of domestic and wild ruminants, with a short and dramatic clinical course characterized primarily by high fever, severe depression, swollen lymph nodes, salivation, diarrhea, dermatitis, neurological disorders, and ocular lesions often leading to blindness. In the present study, fatal clinical cases of sheep associated malignant catarrhal fever (SA-MCF) were identified in cattle in the state of Karnataka. These cases were initially presented with symptoms of diarrhea, respiratory distress, conjunctivitis, and nasal discharges. Laboratory diagnosis confirmed the detection of ovine herpesvirus-2 (OvHV-2) genome in the peripheral blood samples of two ailing animals. The blood samples collected subsequently from sheep of the neighboring areas also showed presence of OvHV-2 genome indicating a nidus of infection in the region. The positive test results were further confirmed by nucleotide sequencing of the OIE approved portion of tegument gene as well as complete ORF8 region of the OvHV-2 genome. Phylogenetic analysis based on the sequence of the latter region indicated close genetic relationship with other OvHV-2 reported elsewhere in the world.
Assuntos
Gammaherpesvirinae/isolamento & purificação , Febre Catarral Maligna/diagnóstico , Febre Catarral Maligna/virologia , Carneiro Doméstico/virologia , Animais , Sequência de Bases , Bovinos , Clonagem Molecular , Primers do DNA/genética , DNA Viral/sangue , Gammaherpesvirinae/genética , Índia , Febre Catarral Maligna/transmissão , Dados de Sequência Molecular , Filogenia , Reação em Cadeia da Polimerase/veterinária , Análise de Sequência de DNA/veterináriaRESUMO
OBJECTIVES: Female sexual dysfunction (FSD), a common concern affecting women of all ages, is often mediated by important psychological factors. Resilience has been shown to correlate with psychological well-being across different groups of people. The aim of this study was to assess if there is an association between resilience and FSD. STUDY DESIGN: This cross-sectional study included 4,366 women (mean [SD] age, 51.7 [11]) seen in women's health clinics at 1 of 3 geographic Mayo Clinic locations. Participants completed the Brief Resilience Scale, the Female Sexual Function Index (FSFI), and the Female Sexual Distress Scale-Revised (FSDS-R). MAIN OUTCOME MEASURES: We used univariate and multivariable logistic regression analyses to assess associations between resilience, sexual function, and sexual distress, adjusting for potential confounding variables. RESULTS: FSD criteria (FSFI ≤26.55 and FSDS-R ≥ 11) were met by 55.8 % of women. Low, normal, and high levels of resilience were reported by 17.3 %, 57.1 %, and 25.6 % of participants, respectively. The univariate analysis showed that higher resilience was associated with lower sexual distress, lower odds of FSD, and better sexual function. Multivariable analysis adjusted for potential confounders showed that the association persisted and that higher resilience correlated with better sexual function and lower odds of FSD. CONCLUSIONS: In this large cross-sectional study, women with higher resilience scores had better sexual function and lower odds of FSD. Additional studies with diverse women are needed to confirm this association and to determine whether women with FSD could benefit from enhancing resilience as a therapeutic strategy.
Assuntos
Testes Psicológicos , Resiliência Psicológica , Disfunções Sexuais Psicogênicas , Feminino , Humanos , Disfunções Sexuais Psicogênicas/etiologia , Disfunções Sexuais Psicogênicas/psicologia , Estudos Transversais , Inquéritos e Questionários , Comportamento Sexual/psicologiaRESUMO
Domestic ducks (Anas platyrhynchos domesticus) are resistant to most of the highly pathogenic avian influenza virus (HPAIV) infections. In this study, we characterized the lung proteome and phosphoproteome of ducks infected with the HPAI H5N1 virus (A/duck/India/02CA10/2011/Agartala) at 12 h, 48 h, and 5 days post-infection. A total of 2082 proteins were differentially expressed and 320 phosphorylation sites mapping to 199 phosphopeptides, corresponding to 129 proteins were identified. The functional annotation of the proteome data analysis revealed the activation of the RIG-I-like receptor and Jak-STAT signaling pathways, which led to the induction of interferon-stimulated gene (ISG) expression. The pathway analysis of the phosphoproteome datasets also confirmed the activation of RIG-I, Jak-STAT signaling, NF-kappa B signaling, and MAPK signaling pathways in the lung tissues. The induction of ISG proteins (STAT1, STAT3, STAT5B, STAT6, IFIT5, and PKR) established a protective anti-viral immune response in duck lung tissue. Further, the protein-protein interaction network analysis identified proteins like AKT1, STAT3, JAK2, RAC1, STAT1, PTPN11, RPS27A, NFKB1, and MAPK1 as the main hub proteins that might play important roles in disease progression in ducks. Together, the functional annotation of the proteome and phosphoproteome datasets revealed the molecular basis of the disease progression and disease resistance mechanism in ducks infected with the HPAI H5N1 virus.
RESUMO
Crude extracts of leaves and bark of E. jambolana were tested for antiviral activity against highly pathogenic avian influenza virus (H5N1) by CPE reduction assay in three different layouts to elucidate virucidal, post-exposure and preexposure antiviral activity of the extracts. The cold and hot aqueous extracts of bark and hot aqueous extract of leaves of E. jambolana showed significant virucidal activity (100% inhibition) which was further confirmed in virus yield reduction assay (-98 to 99% reduction) and by egg based in ovo assay. The selective index (CC50/EC50) of hot aqueous extract (248) and cold aqueous extract (43.5) of bark of E. jambolana showed their antiviral potential against H5N1 virus. The significant virucidal activity of leaves and bark of E. jambolana merits further investigation as it may provide alternative antiviral agent for managing avian influenza infections in poultry farms and potential avian-human transmission.
Assuntos
Antivirais/farmacologia , Virus da Influenza A Subtipo H5N1/efeitos dos fármacos , Extratos Vegetais/farmacologia , Syzygium/química , Animais , Antivirais/química , Linhagem Celular , Galinhas , Humanos , Influenza Humana/prevenção & controle , Testes de Sensibilidade Microbiana , Infecções por Orthomyxoviridae/prevenção & controle , Extratos Vegetais/químicaRESUMO
The current study aimed to develop broadly protective vaccines for avian influenza. In an earlier study, HA stalk (universal flu vaccine) was found to be broadly protective against different subtypes of influenza virus in mice. Hence, we were interested to know its breadth of protective efficacy either alone or combined with inactivated rgH5N2 (clade 2.3.2.1a) vaccine against challenge viruses of homologous H5N1, heterologous H5N8 (clade 2.3.4.4) and heterosubtypic H9N2 virus in specific pathogen-free chickens. The rgH5N2 vaccine alone or in combination with HA stalk elicited sufficient pre-challenge immunity in the form of haemagglutination inhibiting (HI) antibodies and neutralizing antibodies (MNT) against H5N1, H5N8, and H9N2 in chickens. The rgH5N2 vaccine alone or in combination with HA stalk also attenuated the shedding of H5N1, H5N8 and H9N2 in chickens and protected against the lethal challenge of H5N1 or H5N8. In contrast, all HA stalk immunised chickens died upon H5N1 or H5N8 challenge and H9N2 challenged chickens survived. Our study suggests that the rgH5N2 vaccine can provide clinical protection against H5N1, H5N8 and can attenuate the viral shedding of H9N2 in chickens.
Assuntos
Virus da Influenza A Subtipo H5N1 , Vírus da Influenza A Subtipo H5N2 , Vírus da Influenza A Subtipo H5N8 , Vírus da Influenza A Subtipo H9N2 , Vacinas contra Influenza , Influenza Aviária , Animais , Camundongos , Galinhas , Genética Reversa , Anticorpos AntiviraisRESUMO
OBJECTIVES: Female sexual dysfunction (FSD) affects women of all ages. It is often a multifactorial problem with a strong psychosocial component. Mindfulness may help alleviate FSD with nonjudgmental, present-moment awareness and decreased emotional reactivity. The goal of this study was to assess the association between dispositional or trait mindfulness and FSD. STUDY DESIGN: In this cross-sectional study at a tertiary care women's health clinic, 1718 cisgender women (mean age, 51.9 years) completed the Mindfulness Attention Awareness Scale (MAAS), Female Sexual Function Index (FSFI), and Female Sexual Distress Scale-Revised (FSDS-R). MAIN OUTCOME MEASURES: Regression analysis was used to test the associations of mindfulness, sexual function, and sexual distress with univariate and multivariable analyses, adjusting for potential confounders. RESULTS: Within the sample, 57% of women met FSD criteria (FSFI scores ≤26.55 and FSDS-R ≥ 11). On univariate analysis, higher MAAS scores, signifying greater mindfulness, were associated with higher (better) sexual function scores, lower sexual distress scores, and lower odds of FSD. This association persisted on multivariable analysis after adjusting for potential confounders. CONCLUSIONS: Higher trait mindfulness was associated with better sexual function, lower sexual distress, and lower likelihood of FSD. Further studies are needed to assess the role of mindfulness in mitigating FSD.
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Atenção Plena , Disfunções Sexuais Psicogênicas , Estudos Transversais , Feminino , Humanos , Masculino , Comportamento Sexual/psicologia , Disfunções Sexuais Psicogênicas/psicologia , Disfunções Sexuais Psicogênicas/terapia , Inquéritos e QuestionáriosRESUMO
Natural infections with HoBi-like pestivirus (HoBiPeV) have been detected in cattle in South America, Europe and Asia with a range of clinical manifestations including fatal mucosal disease (MD). In India, although HoBiPeV in cattle has been reported, there is no information on currently circulating HoBiPeV strains and associated severe clinical disease. Between September 2018 and December 2019, suspected cases of bovine viral diarrhoea with severe disease in cattle were noticed in farmers' small holdings in Tamil Nadu State. To determine the extent of pestivirus infection, blood, serum, nasal or oral swab samples of 46 cattle from 18 villages were tested. Based on the real-time RT-PCR, antigen ELISA and nucleotide sequencing results, pestivirus was detected in nine cattle from eight villages in two districts and all pestiviruses were identified as HoBiPeV. All nine HoBiPeV-infected cattle displayed clinical signs resembling MD and HoBiPeV isolates (n = 9) obtained were characterized at genetic and antigenic level. Phylogenetic analyses based on 5'-untranslated regions (5'-UTR), Npro and combined 5'-UTR-Npro gene sequences revealed that eight HoBiPeV isolates clustered into a clade, distinct from all reported HoBiPeV clades (a-d), whereas one belonged to HoBiPeV-d clade, thus providing evidence of emergence of a novel HoBiPeV clade (e). This was also supported by HoBiPeV-e clade-specific amino acid substitutions in Npro and the antigenic reactivity patterns. The study demonstrates the existence and independent evolution of five HoBiPeV clades (four main clades) globally and surprisingly three exclusive to India. Also we confirm first HoBiPeV occurrence in southern India with predominant prevalence of HoBiPeV-e strains. Besides demonstrating increased HoBiPeV genetic diversity, here we show association of HoBiPeV with severe clinical disease involving fatalities highlighting impact of HoBiPeV on cattle health. The emergence of a novel HoBiPeV lineage provides new insights on global HoBiPeV epidemiology and genetic diversity reiterating the need for continuous monitoring of HoBiPeV in India.
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Doenças dos Bovinos , Infecções por Pestivirus , Pestivirus , Animais , Bovinos , Doenças dos Bovinos/epidemiologia , Índia/epidemiologia , Infecções por Pestivirus/epidemiologia , Infecções por Pestivirus/veterinária , FilogeniaRESUMO
The emergence of methicillin-resistant Staphylococcus aureus (MRSA) has increased and become a serious concern worldwide, including India. Additionally, MRSA isolates are showing resistance to other chemotherapeutic agents. Isolated and valuable reports on the prevalence of MRSA are available in India. There is no systematic review on the prevalence of MRSA in one place; hence, this study was planned. The overall prevalence of MRSA in humans in India was evaluated state-wise, zone-wise, and year-wise. A systematic search from PubMed, Indian journals, Google Scholar, and J-Gate Plus was carried out and retrieved 98 eligible articles published from 2015 to 2020 in India. The statistical analysis of data was conducted using R software. The overall prevalence of MRSA was 37% (95% CI: 32-41) from 2015 to 2019. The pooled prevalence of MRSA zone-wise was 41% (95% CI: 33-50), 43% (95% CI: 20-68), 33% (95% CI: 24-43), 34% (95% CI: 26-42), 36% (95% CI: 25-47), and 40% (95% CI: 23-58) for north, east, west, south, central, and northeast region-zones, respectively. The state-wise stratified results showed a predominance of MRSA in Jammu and Kashmir with 55% (95% CI: 42-67) prevalence, and the lowest was 21% (95% CI: 11-34) in Maharashtra. The study indicated that the prevalence data would help in formulating and strict implementation of control measures in hospital areas to prevent the outbreak of MRSA infection and management of antibiotic usage.
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OBJECTIVE: This study reports the percentage of breast cancer survivors receiving ongoing benzodiazepines and the circumstances surrounding their usage. METHODS: The medical records of 1,000 consecutive breast cancer survivors who were no longer receiving adjuvant chemotherapy were reviewed. RESULTS: Among those patients, 7.9% (95% confidence interval 6.2-9.6; higher than the 3% rate in the general population) were receiving benzodiazepines. Lorazepam was most commonly prescribed. Sixty-eight patients were cancer free at their last visit, and 51 had not been taking benzodiazepines prior to their cancer diagnosis. Anxiety was the single most frequent reason for initiating and continuing benzodiazepines. CONCLUSION: Anxiety appears to be a common explanation for relatively high rates of benzodiazepine use in breast cancer survivors. This finding merits further study.
Assuntos
Ansiedade/tratamento farmacológico , Benzodiazepinas/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/mortalidade , Sobreviventes , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/psicologia , Feminino , Humanos , Prontuários Médicos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/mortalidade , Recidiva Local de Neoplasia/psicologia , Taxa de Sobrevida , Resultado do TratamentoRESUMO
Menstrual migraine and other hormonally related headaches are common in women. Falling estrogen levels or estrogen withdrawal after periods of sustained higher levels can trigger migraine. It makes sense to target this trigger for management of hormonally related headaches, particularly when nonhormonal strategies have been unsuccessful. Decision making regarding the use of hormonal contraception and menopausal hormone therapy is complex and commonly driven by other factors, but hormonal manipulation can potentially improve the course of migraine. Providers caring for migraineurs are appropriately concerned about stroke risk. Estrogen-containing hormonal contraceptives are relatively contraindicated for women who have migraine with aura. Postmenopausal hormone therapy is acceptable for women with a history of migraine. For these women, transdermal estradiol is recommended. Estrogen replacement is important for women who undergo an early menopause, whether natural or induced. Practical strategies for hormonal manipulation in the management of migraine and other hormonally related headaches are presented.
Assuntos
Estradiol/uso terapêutico , Ciclo Menstrual/fisiologia , Transtornos de Enxaqueca/tratamento farmacológico , Anticoncepcionais Orais/uso terapêutico , Feminino , Humanos , Masculino , Menopausa/fisiologia , Transtornos de Enxaqueca/classificação , Transtornos de Enxaqueca/fisiopatologia , Fatores de Risco , Acidente Vascular CerebralRESUMO
INTRODUCTION: Mindfulness is a promising intervention for female sexual dysfunction (FSD); however, of the mindfulness interventions studied, few treat the woman and her partner. AIM: We developed a brief online mindfulness, resilience, and psychoeducation intervention, Stress Management and Resiliency Training for Sexuality (Sex SMART), for women with sexual health concerns and their partners. METHODS: Women with female sexual interest/arousal disorder and their partners were recruited between February 24, 2015, and October 6, 2016, and randomized to treatment or control groups (received educational pamphlets). The treatment intervention comprised of an online SMART and sexual health psychoeducation module. MAIN OUTCOME MEASURES: The Female Sexual Function Index (FSFI), Female Sexual Distress Scale-Revised (FSDS-R), Sexual Desire Inventory-2 (SDI-2), Revised Dyadic Adjustment Scale (RDAS), International Index of Erectile Function (IIEF), and other subjective measures were used to assess sexual function and sexual distress at baseline and 12 weeks. RESULTS: The study included 60 women and their partners (30 couples in each group). In both groups, sexual function by total FSFI scores and sexual distress scores significantly improved at 12 weeks compared with baseline, with no significant between-group differences (FSFI effect estimate for Sex SMART vs control = +1.4 (90% CI [-0.6 to +3.4]; P=.13). Both participants and partners randomized to the intervention reported significantly improved attitude and feelings, comfort as a sexual person, and subjective sexual functioning at 12 weeks. The findings provide preliminary evidence for efficacy of an online intervention for couples with sexual health problems. CONCLUSIONS: A brief online mindfulness, resilience, and psychoeducation-based intervention showed no significant improvement in many outcomes (FSFI, FSDS-R, SDI-2, RDAS) of sexual health versus controls. Although this is the first online randomized controlled trial to evaluate a mindfulness-based therapy intervention, it was limited by its lack of population diversity and high attrition rate. Significant improvements in subjective sexual health and partner sexual function by the International Index of Erectile Function were reported only in the intervention group. Rullo JE, Sood R, Fokken SC, et al. Couples' Use of Online Stress Management and Resiliency Training for Sexual Health Concerns: A Randomized Controlled Trial. Sex Med 2021;9:100404.
RESUMO
Ovine herpesvirus 2 (OvHV-2) is the causative agent of sheep-associated malignant catarrhal fever (SA-MCF), a highly fatal disease syndrome that predominantly affects susceptible hosts of the order Artiodactyla. In this study, an in-depth clinico-molecular investigation of SA-MCF disease in a morbid 50-days-old cattle calf (Bos taurus indicus) and asymptomatic infection in the in-contact reservoir hosts, sheep (Ovis aries), and goat (Capra hircus) housed on a farm located in the Southern India is reported. An OIE recommended SA-MCF type-specific PCR confirmed the etiological agent as OvHV-2. The genetic characterization and phylogenetic analyses based on the glycoprotein B (gB) gene indicate that three genetic variants of OvHV-2 had infected the animal cluster of this study. As the OvHV-2 infection eventually lead to the death of the cattle calf, and the fact that its gB sequence carried four unique amino acid substitutions (N169S, L594P, I645V, and V730A), an investigation of these substitutions impact on its stability and molecular flexibility was carried out. The mapping of these amino acid substitutions on the three-dimensional structure of gB coupled with supplementary investigations showed that these substitutions conveyed the molecular flexibility to the gB, at the cost of its stability. Future studies would be to investigate whether these gB substitutions have any impact on membrane fusion activity using a virus-free cell-to-cell membrane fusion assay. The study also highlights the importance of adopting stringent biosecurity measures where mixed animal farming is a common practice.