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1.
SLAS Discov ; 29(5): 100170, 2024 Jul 03.
Article in English | MEDLINE | ID: mdl-38964171

ABSTRACT

The importance of a drug's kinetic profile and interplay of structure-kinetic activity with PK/PD has long been appreciated in drug discovery. However, technical challenges have often limited detailed kinetic characterization of compounds to the latter stages of projects. This review highlights the advances that have been made in recent years in techniques, instrumentation, and data analysis to increase the throughput of detailed kinetic and mechanistic characterization, enabling its application earlier in the drug discovery process.

2.
Microorganisms ; 12(6)2024 Jun 16.
Article in English | MEDLINE | ID: mdl-38930591

ABSTRACT

Lacticaseibacillus rhamnosus CRL1505 possesses immunomodulatory activities in the gastrointestinal and respiratory tracts when administered orally. Its adhesion to the intestinal mucosa does not condition its beneficial effects. The intranasal administration of L. rhamnosus CRL1505 is more effective than the oral route at modulating immunity in the respiratory tract. Nonetheless, it has not yet been established whether the adherence of the CRL1505 strain to the respiratory mucosa is needed to provide the immune benefits to the host. In this study, we evaluated the role of adhesion to the respiratory mucosa of the mucus-binding factor (mbf) knock-out L. rhamnosus CRL1505 mutant (Δmbf CRL1505) in the context of a Toll-like receptor 3 (TLR3)-triggered innate immunity response. In vitro adhesion studies in porcine bronchial epitheliocytes (PBE cells) indicated that L. rhamnosus Δmbf CRL1505 adhered weakly compared to the wild-type strain. However, in vivo studies in mice demonstrated that the Δmbf CRL1505 also reduced lung damage and modulated cytokine production in the respiratory tract after the activation of TLR3 to a similar extent as the wild-type strain. In addition, the mutant and the wild-type strains modulated the production of cytokines and antiviral factors by alveolar macrophages in the same way. These results suggest that the Mbf protein is partially involved in the ability of L. rhamnosus CRL1505 to adhere to the respiratory epithelium, but the protein is not necessary for the CRL1505 strain to exert its immunomodulatory beneficial effects. These findings are a step forward in the understanding of molecular interactions that mediate the beneficial effects of nasally administered probiotics.

3.
Plant Sci ; 346: 112157, 2024 Jun 12.
Article in English | MEDLINE | ID: mdl-38871029

ABSTRACT

Citrus plants are grown in diverse regions of the world, from subtropical to semi-arid and humid tropical areas. Through mechanisms essential for their survival, they adapt to the environmental conditions to which they are subjected. Although there is vast literature on adaptation of citrus plants to individual stresses, plant responses to interaction among different types of stresses have not been clearly examined. Abiotic or biotic stresses, or a combination of these stresses, result in reorganization of plant energy resources for defense, whether it be for resistance, tolerance, or prevention of stress. Plants generally respond to these stress factors through production of secondary metabolites, such as volatile compounds, derived from different biosynthesis and degradation pathways, which are released through distinct routes. Volatile compounds vary among plant species, meeting the specific needs of the plant. Simultaneous exposure to the stress factors of water deficit and herbivory leads to responses such as qualitative and quantitative changes in the emission of secondary metabolites, and compounds may accumulate within the leaves or predispose the plant to more quickly respond to the stress brought about by the herbivore. The genetic makeup of citrus plants can contribute to a better response to stress factors; however, studies on the emission of volatile compounds in different citrus genotypes under simultaneous stresses are limited. This review examines the effects of abiotic stress due to water deficit and biotic stress due to herbivory by Diaphorina citri in citrus plants and examines their connection with volatile compounds. A summary is made of advances in knowledge regarding the performance of volatile compounds in plant defense against both stress factors, as well as the interaction between them and possible findings in citrus plants. In addition, throughout this review, we focus on how genetic variation of the citrus species is correlated with production of volatile compounds to improve stress tolerance.

4.
Plant Cell Rep ; 43(6): 137, 2024 May 07.
Article in English | MEDLINE | ID: mdl-38713285

ABSTRACT

KEY MESSAGE: cAMP modulates the phosphorylation status of highly conserved phosphosites in RNA-binding proteins crucial for mRNA metabolism and reprogramming in response to heat stress. In plants, 3',5'-cyclic adenosine monophosphate (3',5'-cAMP) is a second messenger that modulates multiple cellular targets, thereby participating in plant developmental and adaptive processes. Although its role in ameliorating heat-related damage has been demonstrated, mechanisms that govern cAMP-dependent responses to heat have remained elusive. Here we analyze the role cAMP-dependent phosphorylation during prolonged heat stress (HS) with a view to gain insight into processes that govern plant responses to HS. To do so, we performed quantitative phosphoproteomic analyses in Nicotiana tabacum Bright Yellow-2 cells grown at 27 °C or 35 °C for 3 days overexpressing a molecular "sponge" that reduces free intracellular cAMP levels. Our phosphorylation data and analyses reveal that the presence of cAMP is an essential factor that governs specific protein phosphorylation events that occur during prolonged HS in BY-2 cells. Notably, cAMP modulates HS-dependent phosphorylation of proteins that functions in mRNA processing, transcriptional control, vesicular trafficking, and cell cycle regulation and this is indicative for a systemic role of the messenger. In particular, changes of cAMP levels affect the phosphorylation status of highly conserved phosphosites in 19 RNA-binding proteins that are crucial during the reprogramming of the mRNA metabolism in response to HS. Furthermore, phosphorylation site motifs and molecular docking suggest that some proteins, including kinases and phosphatases, are conceivably able to directly interact with cAMP thus further supporting a regulatory role of cAMP in plant HS responses.


Subject(s)
Cyclic AMP , Heat-Shock Response , Nicotiana , Plant Proteins , Phosphorylation , Nicotiana/genetics , Nicotiana/metabolism , Heat-Shock Response/physiology , Cyclic AMP/metabolism , Plant Proteins/metabolism , Plant Proteins/genetics , Gene Expression Regulation, Plant
5.
Pathogens ; 13(5)2024 May 08.
Article in English | MEDLINE | ID: mdl-38787242

ABSTRACT

Paratuberculosis, or Johne's disease, caused by Mycobacterium avium subsp. paratuberculosis (MAP), is a chronic granulomatous enteritis affecting both domestic and wild ruminants. The agent was also found in wild mammals such as wild boar (Sus scrofa); however, the role of wild mammals in the epidemiology of MAP is unclear. During the research period, 941 free-ranging wild boar (S. scrofa) legally hunted in two locations in the central-eastern region of Portugal were examined. Ninety-seven wild boars exhibited one or more gross lesions and were tested for the presence of Mycobacterium avium subsp. paratuberculosis using acid-fast staining, mycobacterial culture, polymerase chain reaction (PCR), and histopathological examination. Forty-five animals (46.4%, 95% CI: 36.5-56.3%) were identified as infected, as indicated by positive results in culture and/or PCR. The findings revealed that the most significant risk factor was being a juvenile compared to yearlings and adults (OR = 10.2, 95% CI: 2.2-48.0). Based on our results, 37.9% (n = 11) of the infected animals were considered suitable for human consumption. Our findings offer novel insights into mycobacterial infections in wild boar populations in Portugal and suggest that wild boar could be a source of human infection if zoonotic potential is considered.

6.
J Cell Biol ; 223(7)2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38695719

ABSTRACT

Microglia sense the changes in their environment. How microglia actively translate these changes into suitable cues to adapt brain physiology is unknown. We reveal an activity-dependent regulation of cortical inhibitory synapses by microglia, driven by purinergic signaling acting on P2RX7 and mediated by microglia-derived TNFα. We demonstrate that sleep induces microglia-dependent synaptic enrichment of GABAARs in a manner dependent on microglial TNFα and P2RX7. We further show that microglia-specific depletion of TNFα alters slow waves during NREM sleep and blunt memory consolidation in sleep-dependent learning tasks. Together, our results reveal that microglia orchestrate sleep-intrinsic plasticity of synaptic GABAARs, sculpt sleep slow waves, and support memory consolidation.


Subject(s)
Microglia , Receptors, GABA-A , Sleep, Slow-Wave , Synapses , Tumor Necrosis Factor-alpha , Animals , Male , Mice , Memory Consolidation , Mice, Inbred C57BL , Microglia/metabolism , Neuronal Plasticity/physiology , Receptors, GABA-A/metabolism , Receptors, Purinergic P2X7/metabolism , Receptors, Purinergic P2X7/genetics , Signal Transduction , Sleep/physiology , Synapses/metabolism , Tumor Necrosis Factor-alpha/metabolism
7.
Int J Mol Sci ; 25(9)2024 May 02.
Article in English | MEDLINE | ID: mdl-38732185

ABSTRACT

Herpes simplex virus (HSV) infections are highly widespread among humans, producing symptoms ranging from ulcerative lesions to severe diseases such as blindness and life-threatening encephalitis. At present, there are no vaccines available, and some existing antiviral treatments can be ineffective or lead to adverse effects. As a result, there is a need for new anti-HSV drugs. In this report, the in vitro anti-HSV effect of 9,9'-norharmane dimer (nHo-dimer), which belongs to the ß-carboline (ßC) alkaloid family, was evaluated. The dimer exhibited no virucidal properties and did not impede either the attachment or penetration steps of viral particles. The antiviral effect was only exerted under the constant presence of the dimer in the incubation media, and the mechanism of action was found to involve later events of virus infection. Analysis of fluorescence lifetime imaging data showed that the nHo-dimer internalized well into the cells when present in the extracellular incubation medium, with a preferential accumulation into perinuclear organelles including mitochondria. After washing the host cells with fresh medium free of nHo-dimer, the signal decreased, suggesting the partial release of the compound from the cells. This agrees with the observation that the antiviral effect is solely manifested when the alkaloid is consistently present in the incubation media.


Subject(s)
Antiviral Agents , Antiviral Agents/pharmacology , Antiviral Agents/chemistry , Chlorocebus aethiops , Humans , Vero Cells , Animals , Simplexvirus/drug effects , Simplexvirus/physiology , Herpes Simplex/drug therapy , Herpes Simplex/virology , Carbolines/pharmacology , Carbolines/chemistry , Herpesvirus 1, Human/drug effects , Herpesvirus 1, Human/physiology , Harmine/pharmacology , Harmine/chemistry , Harmine/analogs & derivatives
8.
Pharmaceuticals (Basel) ; 17(5)2024 Apr 29.
Article in English | MEDLINE | ID: mdl-38794142

ABSTRACT

Despite past efforts towards therapeutical innovation, cancer remains a highly incident and lethal disease, with current treatments lacking efficiency and leading to severe side effects. Hence, it is imperative to develop new, more efficient, and safer therapies. Bee venom has proven to have multiple and synergistic bioactivities, including antitumor effects. Nevertheless, some toxic effects have been associated with its administration. To tackle these issues, in this work, bee venom-loaded niosomes were developed, for cancer treatment. The vesicles had a small (150 nm) and homogeneous (polydispersity index of 0.162) particle size, and revealed good therapeutic efficacy in in vitro gastric, colorectal, breast, lung, and cervical cancer models (inhibitory concentrations between 12.37 ng/mL and 14.72 ng/mL). Additionally, they also revealed substantial anti-inflammatory activity (inhibitory concentration of 28.98 ng/mL), effects complementary to direct antitumor activity. Niosome safety was also assessed, both in vitro (skin, liver, and kidney cells) and ex vivo (hen's egg chorioallantoic membrane), and results showed that compound encapsulation increased its safety. Hence, small, and homogeneous bee venom-loaded niosomes were successfully developed, with substantial anticancer and anti-inflammatory effects, making them potentially promising primary or adjuvant cancer therapies. Future research should focus on evaluating the potential of the developed platform in in vivo models.

9.
Braz J Microbiol ; 2024 May 14.
Article in English | MEDLINE | ID: mdl-38743245

ABSTRACT

Candida spp. can be found in the human microbiome. However, immunocompromised patients are likely to develop invasive Candida infections, with mortality rates higher than 50%. The discovery of C. auris, a species that rapidly acquire antifungal resistance, increased the concern about Candida infections. The limited number of antifungal agents and the high incidence of resistance to them make imperative the development of new antifungal drugs. ß-lapachone is a biological active naphthoquinone that displays antifungal activity against C. albicans and C. glabrata. The aim of this study was to evaluate if this substance affects C. auris growth and elucidate its mechanism of action. A fluconazole-resistant C. auris isolate was used in this study. The antifungal activity of ß-lapachone was determined through microbroth dilution assays, and its mechanism of action was evaluated using fluorescent probes. Interaction with fluconazole and amphotericin B was assessed by disk diffusion assay and checkerboard. ß-lapachone inhibited planktonic C. auris cell growth by 92.7%, biofilm formation by 84.9%, and decrease the metabolism of preformed biofilms by 87.1% at 100 µg/ml. At 100 µg/ml, reductions of 30% and 59% of Calcofluor White and Nile red fluorescences were observed, indicating that ß-lapachone affects cell wall chitin and neutral lipids content, respectively. Also, the ratio 590 nm/529 nm of JC-1 decreased 52%, showing that the compound affects mitochondria. No synergism was observed between ß-lapachone and fluconazole or amphotericin B. Data show that ß-lapachone may be a promising candidate to be used as monotherapy to treat C. auris resistant infections.

10.
Braz J Microbiol ; 55(2): 2005-2011, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38573540

ABSTRACT

Avian chlamydiosis is a bacterial infectious disease of birds, considered until recently caused only by Chlamydia psittaci, that now includes the newly described species C. buteonis, C. avium, and C. gallinacea, associated with several avian hosts. Since its recognition as a species in 2014 and having chickens as one of its main hosts, C. gallinacea has already been described in backyard poultry on all continents. The present study aimed to survey by molecular techniques the presence and species of Chlamydia spp. in backyard chickens from three states of the southern region of Brazil (Paraná-PR, Santa Catarina-SC, and Rio Grande do Sul-RS). DNA extracted from cloacal swab samples were tested by polymerase chain reaction (PCR) for different species of Chlamydia, namely Chlamydiaceae (23 S rRNA gene), C. psittaci (ompA gene), C. avium (enoA gene) and C. gallinacea (gidA and enoA genes). The 16 S rRNA gene was used for sequencing and phylogenetic analysis. A total of 582 backyard chicken samples were collected and grouped in 238 pools, from 134 properties in 59 municipalities. Chlamydiaceae was detected in 25.2% (60/238) of the samples, in 38.8% (52/134) of the properties and in 66.1% (39/59) of the municipalities. None of the samples yielded positive PCR results for C. psittaci or C. avium. For C. gallinacea, the overall percentage was 16.3% (39/238) according to the results of gidA and enoA genes. Sequence analysis confirmed that the samples corresponded to C. gallinacea. This is the first report of C. gallinacea in Brazil.


Subject(s)
Chickens , Chlamydia Infections , Chlamydia , Phylogeny , Poultry Diseases , Animals , Chickens/microbiology , Brazil , Chlamydia/genetics , Chlamydia/classification , Chlamydia/isolation & purification , Chlamydia Infections/veterinary , Chlamydia Infections/microbiology , Poultry Diseases/microbiology , Poultry Diseases/epidemiology , Farms , RNA, Ribosomal, 16S/genetics , DNA, Bacterial/genetics
12.
Vaccines (Basel) ; 12(4)2024 Apr 12.
Article in English | MEDLINE | ID: mdl-38675794

ABSTRACT

Previously, it was shown that intranasally (i.n.) administered Corynebacterium pseudodiphtheriticum 090104 (Cp) or CP-derived bacterium-like particles (BLPs) improve the immunogenicity of the pneumococcal conjugate vaccine (PCV). This work aimed to deepen the characterization of the adjuvant properties of Cp and CP-derived BLPs for their use in the development of pneumococcal vaccines. The ability of Cp and CP-derived BLPs to improve both the humoral and cellular specific immune responses induced by i.n. administered polysaccharide-based commercial pneumococcal vaccine (Pneumovax 23®) and the chimeric recombinant PSPF (PsaA-Spr1875-PspA-FliC) protein was evaluated, as well as the protection against Streptococcus pneumoniae infection in infant mice. Additionally, whether the immunization protocols, including Cp and CP-derived BLPs, together with the pneumococcal vaccines can enhance the resistance to secondary pneumococcal pneumonia induced after inflammatory lung damage mediated by the activation of Toll-like receptor 3 (TLR3) was assessed. The results showed that both Cp and CP-derived BLPs increased the immunogenicity and protection induced by two pneumococcal vaccines administered through the nasal route. Of note, the nasal priming with the PSPF T-dependent antigen co-administered with Cp or CP-derived BLPs efficiently stimulated humoral and cellular immunity and increased the resistance to primary and secondary pneumococcal infections. The CP-derived BLPs presented a stronger effect than live bacteria. Given safety concerns associated with live bacterium administration, especially in high-risk populations, such as infants, the elderly, and immunocompromised patients, BLPs emerge as an attractive mucosal adjuvant to improve the host response to pneumococcal infections and to enhance the vaccines already in the market or in development.

13.
In Vivo ; 38(3): 1429-1435, 2024.
Article in English | MEDLINE | ID: mdl-38688606

ABSTRACT

BACKGROUND/AIM: Stage migration, a phenomenon triggered by technological advancements allowing more sensitive tumor spread detection, results in alterations in the distribution of cancer stages within a population. Canine multicentric lymphoma is staged I to V based on the affected anatomic site(s) and substage a or b depending on the presence of tumor-related clinical signs. The primary objective of this study was to assess the influence of various diagnostic techniques on staging accuracy and determine whether multiple staging methods lead to significant stage migration, impacting the reliability of disease stage assignments. MATERIALS AND METHODS: Dogs cytologically diagnosed with multicentric lymphoma were staged using four different staging methods (A-D): A (physical examination, hemogram, blood smear), B (A plus thoracic X-ray, abdominal ultrasound), C (B plus liver and spleen cytology) and D (C plus bone marrow cytology). RESULTS: Twenty-three dogs were enrolled: 16 females (70%) and seven males (30%). Regarding immunophenotype, 21 dogs (91.3%) were B-cell and two dogs (8.7%) were T-cell. Stage migration was observed between all staging methods. Between A and B, 12 animals migrated from stage III to stage IV. Between B and C, four animals migrated, three to a higher stage (stage III to IV) and one to a lower stage (stage IV to III). Between C and D, one animal migrated from stage IV to V. The differences between staging methods A and B were statistically significant (p≤0.001). CONCLUSION: Stage migration in canine multicentric lymphoma depends on the diagnostic methods used and reinforces the need to use standardized staging methods to avoid it.


Subject(s)
Dog Diseases , Lymphoma , Neoplasm Staging , Dogs , Animals , Female , Male , Dog Diseases/diagnosis , Dog Diseases/pathology , Lymphoma/veterinary , Lymphoma/diagnosis , Lymphoma/pathology , Immunophenotyping
14.
BMC Pediatr ; 24(1): 286, 2024 Apr 29.
Article in English | MEDLINE | ID: mdl-38685089

ABSTRACT

OBJECTIVE: To describe the feeding characteristics and growth of children with prenatal exposure to Zika virus (ZIKV) from birth to 48 months. DESIGN: Using data from the prospective Microcephaly Epidemic Research Group Pediatric Cohort (MERG-PC), children without microcephaly born to mothers with evidence of ZIKV infection during pregnancy (ZIKV-exposed children without microcephaly) and children with Zika-related microcephaly were compared using repeated cross-sectional analyses within the following age strata: birth; 1 to 12; 13 to 24; 25 to 36; and 37 to 48 months. The groups were compared in relation to prematurity, birth weight, breastfeeding, alternative feeding routes, dysphagia and anthropometric profiles based on the World Health Organization Anthro z-scores (weight-length/height, weight-age, length/height-age and BMI-age). RESULTS: The first assessment included 248 children, 77 (31.05%) with microcephaly and 171 (68.95%) without microcephaly. The final assessment was performed on 86 children. Prematurity was 2.35 times higher and low birth weight was 3.49 times higher in children with microcephaly. The frequency of breastfeeding was high (> 80%) in both groups. On discharge from the maternity hospital, the frequency of children requiring alternative feeding route in both groups was less than 5%. After 12 months of age, children with microcephaly required alternative feeding route more often than children without microcephaly. In children with microcephaly, the z-score of all growth indicators was lower than in children without microcephaly. CONCLUSIONS: Children with Zika-related microcephaly were more frequently premature and low birth weight and remained with nutritional parameters, i.e., weight-for-age, weight-for-length/height and length/height-for-age below those of the children without microcephaly.


Subject(s)
Breast Feeding , Microcephaly , Pregnancy Complications, Infectious , Prenatal Exposure Delayed Effects , Zika Virus Infection , Humans , Microcephaly/epidemiology , Microcephaly/etiology , Microcephaly/virology , Zika Virus Infection/complications , Zika Virus Infection/epidemiology , Female , Pregnancy , Infant, Newborn , Infant , Male , Pregnancy Complications, Infectious/epidemiology , Child, Preschool , Cross-Sectional Studies , Prospective Studies , Child Development , Brazil/epidemiology
15.
Article in English | MEDLINE | ID: mdl-38656040

ABSTRACT

Inactivated COVID-19 vaccines data in immunocompromised individuals are scarce. This trial assessed the immunogenicity of two CoronaVac doses and additional BNT162b2 mRNA vaccine doses in immunocompromised (IC) and immunocompetent (H) individuals. Adults with solid organ transplant (SOT), hematopoietic stem cell transplant, cancer, inborn immunity errors or rheumatic diseases were included in the IC group. Immunocompetent adults were used as control group for comparison. Participants received two CoronaVac doses within a 28-day interval. IC received two additional BNT162b2 doses and H received a third BNT162b2 dose (booster). Blood samples were collected at baseline, 28 days after each dose, pre-booster and at the trial end. We used three serological tests to detect antibodies to SARS-CoV-2 nucleocapsid (N), trimeric spike (S), and receptor binding domain (RBD). Outcomes included seroconversion rates (SCR), geometric mean titers (GMT) and GMT ratio (GMTR). A total of 241 IC and 100 H adults participated in the study. After two CoronaVac doses, IC had lower SCR than H: anti-N, 33.3% vs 79%; anti-S, 33.8% vs 86%, and anti-RBD, 48.5% vs 85%, respectively. IC also showed lower GMT than H: anti-N, 2.3 vs 15.1; anti-S, 58.8 vs 213.2 BAU/mL; and anti-RBD, 22.4 vs 168.0 U/mL, respectively. After the 3rd and 4th BNT162b2 doses, IC had significant anti-S and anti-RBD seroconversion, but still lower than H after the 3rd dose. After boosting, GMT increased in IC, but remained lower than in the H group. CoronaVac two-dose schedule immunogenicity was lower in IC than in H. BNT162b2 heterologous booster enhanced immune response in both groups.


Subject(s)
Antibodies, Viral , BNT162 Vaccine , COVID-19 Vaccines , COVID-19 , Immunocompromised Host , Immunogenicity, Vaccine , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Antibodies, Viral/blood , BNT162 Vaccine/immunology , BNT162 Vaccine/administration & dosage , COVID-19/prevention & control , COVID-19/immunology , COVID-19 Vaccines/immunology , COVID-19 Vaccines/administration & dosage , Immunization, Secondary , Immunocompetence/immunology , Immunocompromised Host/immunology , Vaccines, Inactivated/immunology , Vaccines, Inactivated/administration & dosage
16.
Plant Cell Physiol ; 65(4): 576-589, 2024 May 14.
Article in English | MEDLINE | ID: mdl-38591870

ABSTRACT

In the last years, plant organelles have emerged as central coordinators of responses to internal and external stimuli, which can induce stress. Mitochondria play a fundamental role as stress sensors being part of a complex communication network between the organelles and the nucleus. Among the different environmental stresses, salt stress poses a significant challenge and requires efficient signaling and protective mechanisms. By using the why2 T-DNA insertion mutant and a novel knock-out mutant prepared by CRISPR/Cas9-mediated genome editing, this study revealed that WHIRLY2 is crucial for protecting mitochondrial DNA (mtDNA) integrity during salt stress. Loss-of-function mutants show an enhanced sensitivity to salt stress. The disruption of WHIRLY2 causes the impairment of mtDNA repair that results in the accumulation of aberrant recombination products, coinciding with severe alterations in nucleoid integrity and overall mitochondria morphology besides a compromised redox-dependent response and misregulation of antioxidant enzymes. The results of this study revealed that WHIRLY2-mediated structural features in mitochondria (nucleoid compactness and cristae) are important for an effective response to salt stress.


Subject(s)
Arabidopsis Proteins , Arabidopsis , DNA, Mitochondrial , Mitochondria , Salt Stress , Arabidopsis/genetics , Arabidopsis/physiology , Arabidopsis/metabolism , Arabidopsis/drug effects , Arabidopsis Proteins/metabolism , Arabidopsis Proteins/genetics , Salt Stress/genetics , Mitochondria/metabolism , Mitochondria/drug effects , DNA, Mitochondrial/genetics , DNA, Mitochondrial/metabolism , Mitochondrial Proteins/metabolism , Mitochondrial Proteins/genetics , Gene Expression Regulation, Plant , CRISPR-Cas Systems
17.
Adv Rheumatol ; 64(1): 23, 2024 03 29.
Article in English | MEDLINE | ID: mdl-38553751

ABSTRACT

BACKGROUND: Infections increase mortality and morbidity and often limit immunosuppressive treatment in rheumatoid arthritis patients. OBJECTIVE: To analyze the occurrence of serious infections and the associated factors in a cohort of rheumatoid arthritis patients under real-life conditions. METHODS: We analyzed data from the REAL, a prospective observational study, that evaluated Brazilian RA patients, with clinical and laboratory data collected over a year. Univariate and multivariate analyses were performed from the adjustment of the logistic regression model Generalized Estimating Equations (GEE), with the primary outcome being the occurrence of serious infection, defined as need for hospitalization or use of intravenous antibiotics for its treatment. RESULTS: 841 patients were included with an average follow-up time of 11.2 months (SD 2.4). Eighty-nine serious infections occurred, corresponding to 13 infections per 100 patient-years. Pulmonary fibrosis, chronic kidney disease (CKD) and central nervous system disease increased the chances of serious infection by 3.2 times (95% CI: 1.5-6.9), 3.6 times (95% CI: 1.2-10.4) and 2.4 times (95% CI: 1.2-5.0), respectively. The use of corticosteroids in moderate doses increased the chances by 5.4 times (95% CI: 2.3-12.4), and for each increase of 1 unit in the health assessment questionnaire (HAQ), the chance increased 60% (95% CI: 20-120%). CONCLUSION: The use of corticosteroids at moderate doses increased the risk of serious infection in RA patients. Reduced functionality assessed by the HAQ and comorbidities were other important factors associated with serious infection in this cohort.


Subject(s)
Antirheumatic Agents , Arthritis, Rheumatoid , Humans , Antirheumatic Agents/therapeutic use , Prospective Studies , Brazil/epidemiology , Arthritis, Rheumatoid/complications , Arthritis, Rheumatoid/drug therapy , Arthritis, Rheumatoid/epidemiology , Adrenal Cortex Hormones/therapeutic use
18.
J Integr Med ; 22(3): 235-244, 2024 May.
Article in English | MEDLINE | ID: mdl-38493063

ABSTRACT

BACKGROUND: Pain associated with cancer is one of the greatest causes of reduced quality of life in patients. Acupuncture is one of the treatments used to address this issue, with the great advantage of having little or no side effects, especially when compared with pharmacological pain-killers. OBJECTIVE: The aim of this systematic review and meta-analysis was to evaluate the current evidence regarding the efficacy of acupuncture for cancer pain. SEARCH STRATEGY: Six electronic databases (PubMed, EBSCO, Cochrane Library, Scielo, b-On and Scopus) were searched for relevant articles about pain relief in cancer patients from their beginning until 2022 using MeSH terms such as "acupuncture," "electroacupuncture," "ear acupuncture," "acupuncture analgesia," ''oncological pain," and "cancer pain." INCLUSION CRITERIA: Studies included were randomized controlled trials (RCTs) where acupuncture was compared with no treatment, placebo acupuncture or usual care. DATA EXTRACTION AND ANALYSIS: Three independent reviewers participated in data extraction and evaluation of risk of bias, and a meta-analysis was conducted. The primary outcome was pain intensity, measured with the visual analog scale, numeric rating scale, or brief pain inventory. Secondary outcomes also assessed were quality of life, functionality, xerostomia, pain interference, and analgesic consumption. Results were expressed as standardized mean difference (SMD) with 95% confidence interval (CI). RESULTS: Sixteen RCTs with a total of 1124 participants were included in the meta-analysis, with the majority of the studies presenting a low or unclear risk of bias. Acupuncture was more effective in reducing pain than no treatment (SMD = -0.90, 95 % CI [-1.68, -0.12]), sham acupuncture (SMD = -1.10, 95 % CI [-1.59, -0.61]) or usual care (SMD = -1.16, 95 % CI [-1.38, -0.93]). CONCLUSION: The results of this study suggest that acupuncture may be an effective intervention to reduce pain associated with cancer. Despite some limitations due to the low quality and small sample size of some included studies, as well as the different types and stages of cancer, acupuncture might provide an effective and safe treatment to reduce cancer pain. Please cite this article as: Faria M, Teixeira M, Pinto MJ, Sargento P. Efficacy of acupuncture on cancer pain: A systematic review and meta-analysis. J Integr Med. 2024; 22(3): 235-244.


Subject(s)
Acupuncture Therapy , Cancer Pain , Humans , Cancer Pain/therapy , Quality of Life , Pain Management/methods , Randomized Controlled Trials as Topic , Pain Measurement , Neoplasms/complications , Neoplasms/therapy , Treatment Outcome
19.
Sex Reprod Healthc ; 40: 100956, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38432162

ABSTRACT

OBJECTIVE: To explore and describe social and healthcare professionals' perceptions and educational needs in relation to domestic violence and its prevention. METHODS: A qualitative research was conducted in three European countries. Two multidisciplinary focus group interviews were conducted (in each country) among professionals and higher education teachers in the field of social and health care. Total number of participants were 32 (Finland n=12, Greece n=12, Portugal n=8). The transcribed data were analyzed by thematic analysis. RESULTS: Participants' perceptions of domestic violence and its prevention included: multidimensional phenomenon, consequences, and addressing concern. Domestic violence was seen as a multidimensional phenomenon, which has various consequences for several aspects of life. Professionals have difficulties addressing their concern due to lack of knowledge and tools. Solutions to prevent domestic violence that the participants shared were: education, intervention, and strategies. Education was seen as the key aspect for the prevention of domestic violence. Also, professionals' communication and situation management skills, as well as national and international strategies, were seen as valuable solutions. Educational needs for prevention of domestic violence were expressed based on content, methods, and practices, such as services system and legislation. CONCLUSION: The findings of the current study highlight the social- and healthcare professionals' need for education about domestic violence. It is essential that these professionals receive appropriate training to effectively identify and address domestic violence. The current study provides useful information for the development of relevant training/education for this group of professionals.


Subject(s)
Attitude of Health Personnel , Domestic Violence , Focus Groups , Health Personnel , Qualitative Research , Humans , Domestic Violence/prevention & control , Health Personnel/education , Female , Male , Greece , Portugal , Adult , Perception , Health Knowledge, Attitudes, Practice , Middle Aged , Social Workers/education , Needs Assessment
20.
Clin Ophthalmol ; 18: 365-375, 2024.
Article in English | MEDLINE | ID: mdl-38343905

ABSTRACT

Purpose: To perform a multimodal assessment of refractive outcomes and quality of vision (QoV) in patients with high myopia submitted to multifocal intraocular lens (IOL) implantation. Methods: Retrospective study that included consecutive eyes with high myopia (axial length [AL] >26.00mm) submitted to multifocal IOL implantation between January 2014 and February 2020. Minimum follow-up time was 3 years. QoV was evaluated with the Objective Scatter Index (OSI) and the Modular Transfer Function (MTF) by HD Analyzer®. Two QoV questionnaires were applied to patients in which both eyes were included: the McAlinden and the Catquest-9 SF. Results: We included 50 eyes (28 patients). The mean follow-up time was 5.4±1.0 years. Comparing to month 1 after surgery, at the last follow-up visit, there was a decrease in the uncorrected visual acuity (0.14±0.13 vs 0.08±0.09 LogMAR, p=0.024), a negative increase in the spherical equivalent (-0.31±0.60 vs -0.02±0.20, p=0.006) and no changes in the best-corrected visual acuity (p>0.999). An uncorrected near visual acuity of at least J2 was achieved in 89% of eyes one month after surgery and in 91% of eyes at the last follow-up visit (p=0.829). At the last follow-up, the mean OSI was 5.1±1.8 and the mean MTF was 17.5±10.6. Some degree of near vision difficulty was reported by 91% of patients, and 74% of patients reported photic phenomena (halos, glare, starbursts). However, most patients reported that these symptoms caused none to little bothersome. At the last follow-up, 87% of patients were at least fairly satisfied with the surgery. Conclusion: Even after a mean follow-up time of 5 years, patients maintained good uncorrected visual acuity. Even though most patients experienced some degree of near vision difficulty and visual symptoms, globally, our patients were satisfied with their current vision, and the experienced symptoms did not have a significant impact on their daily lives.

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