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1.
J Multidiscip Healthc ; 17: 971-980, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38465327

RESUMO

Background: Preoperative patient education is pivotal in improving patient outcomes during the perioperative phase, involving a thorough explanation of what patients can expect. This enhances adherence and reduces perioperative anxiety. In orthopedics, carpal tunnel syndrome, a common and painful hand condition, is effectively managed through surgical release under local anesthesia. Inadequate counseling before such procedures may intensify intraoperative anxiety and increase pain responses. Thus, this research aims to investigate the effects of comprehensive preoperative counseling on various parameters in carpal tunnel release surgery. Methods: A case-control study design was adopted for this study. A retrospective analysis of patients who underwent carpal tunnel release surgery was performed. These patients were categorized into two distinct groups: one group received comprehensive counseling during their clinic visits, while the other group reported receiving less effective counseling. Evaluation encompassed patient-related factors, disease-related aspects, and perioperative variables for both groups. Results: The study comprised 681 participants, with 526 (77.2%) being females, 421 (61.8%) undergoing surgery on the right side, and 519 (76.2%) employed in non-manual occupations. Moreover, 559 (82.1%) were non-smokers, while approximately two-thirds of the cohort had both diabetes and hypertension. The average age of participants was 52 years, and they reported a mean functional disability score of 7.2 out of 10. The comprehensive preoperative counseling group consisted of 333 patients, while the other group included 348 patients. The analysis revealed statistically significant differences between the two groups, including reduced intra-procedural anxiety (p = 0.043), decreased intraoperative pain (p = 0.005), lower rates of wound complications (p = 0.022), and improved self-reported pain relief (p = 0.3). Conclusion: Our study emphasizes the crucial role of preoperative counseling in improving patient experiences during perioperative care, leading to reduced anxiety, milder pain responses, fewer complications, decreased reliance on postoperative pain medication, and increased self-reported pain relief. Level of Evidence: Level III, Case-control retrospective study.

2.
Adv Nutr ; 15(3): 100179, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38246350

RESUMO

Around the world, paid work without appropriate structural support is a key barrier to optimal breastfeeding practices. To better protect, promote, and support optimal breastfeeding practices among working women in Africa, this scoping review sought to understand how paid work influences infant feeding practices in the first 6 mo of life and what support women need to manage work and optimal infant feeding practices. We systematically searched PubMed, Scopus, Global Health, and CINAHL Plus, screened 2436 abstracts, and reviewed 322 full-text articles using Covidence for review and charting. We identified 203 articles that met the inclusion criteria. We identified 32 quantitative, 10 qualitative, 3 mixed-methods, and 2 review articles that focused on examining the relationship between work and breastfeeding, and 109 quantitative, 22 qualitative, 21 mixed-methods, and 4 review articles that included work as part of broader breastfeeding research but did not focus on work. Most studies reported a significant negative association between work and exclusive breastfeeding. Three major domains were reported in the qualitative studies: challenges to managing work and infant feeding, receiving support from employers and family members/caregivers, and strategies for feeding infants when the mother is working. Reviewed studies proposed recommendations to increase support for breastfeeding through changes to policies and support within worksites, the health system, and childcare; however, evidence of previously implemented policies or programs is limited. We recommend more consistent definitions and measurement of women's work. Future research is needed on the impact of implementing various strategies and benefits for breastfeeding at workplaces, as well as efforts to support breastfeeding among informal workers.


Assuntos
Aleitamento Materno , Mulheres Trabalhadoras , Lactente , Humanos , Feminino , Mães , Local de Trabalho , África
3.
Cells ; 11(7)2022 03 24.
Artigo em Inglês | MEDLINE | ID: mdl-35406668

RESUMO

Follicular T helper cells (Tfh cells) provide key B-cell help and are essential in germinal center formation and (auto) antibody generation. To gain more insight into their role during the earliest phase of rheumatoid arthritis (RA), we analyzed their frequencies, phenotypes, and cytokine profiles in peripheral blood and lymph node biopsies of healthy controls (HCs), autoantibody-positive individuals at risk for developing RA (RA-risk individuals), and early RA patients. Subsequently, we confirmed their presence in lymph nodes and synovial tissue of RA patients using immunofluorescence microscopy. In the blood, the frequency of Tfh cells did not differ between study groups. In lymphoid and synovial tissues, Tfh cells were localized in B-cell areas, and their frequency correlated with the frequency of CD19+ B cells. Compared to lymphoid tissues of healthy controls, those of RA patients and RA-risk individuals showed more CD19+ B cells, CD4+CXCR5+ follicular helper T cells, and CD8+CXCR5+ follicular T cells. These Tfh cells produced less IL-21 upon ex vivo stimulation. These findings suggest that Tfh cells may present a novel rationale for therapeutic targeting during the preclinical stage of RA to prevent further disease progression.


Assuntos
Artrite Reumatoide , Linfócitos T Auxiliares-Indutores , Biópsia , Linfócitos T CD8-Positivos , Humanos , Linfonodos , Tecido Linfoide
4.
Immunol Cell Biol ; 100(4): 250-266, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35188985

RESUMO

The ongoing coronavirus disease 2019 (COVID-19) pandemic perpetuated by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants has highlighted the continued need for broadly protective vaccines that elicit robust and durable protection. Here, the vaccinia virus-based, replication-defective Sementis Copenhagen Vector (SCV) was used to develop a first-generation COVID-19 vaccine encoding the spike glycoprotein (SCV-S). Vaccination of mice rapidly induced polyfunctional CD8 T cells with cytotoxic activity and robust type 1 T helper-biased, spike-specific antibodies, which are significantly increased following a second vaccination, and contained neutralizing activity against the alpha and beta variants of concern. Longitudinal studies indicated that neutralizing antibody activity was maintained up to 9 months after vaccination in both young and middle-aged mice, with durable immune memory evident even in the presence of pre-existing vector immunity. Therefore, SCV-S vaccination has a positive immunogenicity profile, with potential to expand protection generated by current vaccines in a heterologous boost format and presents a solid basis for second-generation SCV-based COVID-19 vaccine candidates incorporating additional SARS-CoV-2 immunogens.


Assuntos
COVID-19 , Vacínia , Animais , Anticorpos Neutralizantes , Anticorpos Antivirais , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Humanos , Imunidade Celular , Imunidade Humoral , Camundongos , SARS-CoV-2 , Glicoproteína da Espícula de Coronavírus/genética , Vacinação
5.
Comput Math Methods Med ; 2022: 5975228, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35222684

RESUMO

The mechanical heart valve is a crucial solution for many patients. However, it cannot function on the state of blood as human tissue valves. Thus, people with mechanical valves are put under anticoagulant therapy. A good measurement of the state of blood and how long it takes blood to form clots is the prothrombin time (PT); moreover, it is an indicator of how well the anticoagulant therapy is, and of whether the response of the patient to the drug is as needed. For a more specific standardized measurement of coagulation time, an international normalized ratio (INR) is established. Clinical testing of INR and PT is relatively easy. However, it requires the patient to visit the clinic for evaluation purposes. Many techniques are therefore being developed to provide PT and INR self-testing devices. Unfortunately, those solutions are either inaccurate, complex, or expensive. The present work approaches the design of an anticoagulation self-monitoring device that is easy to use, accurate, and relatively inexpensive. Hence, a two-channel polymethyl methacrylate-based microfluidic point-of-care (POC) smart device has been developed. The Arduino based lab-on-a-chip device applies optical properties to a small amount of blood. The achieved accuracy is 96.7%.


Assuntos
Coeficiente Internacional Normatizado/instrumentação , Dispositivos Lab-On-A-Chip , Testes Imediatos , Tempo de Protrombina/instrumentação , Anticoagulantes/uso terapêutico , Biologia Computacional , Desenho de Equipamento , Próteses Valvulares Cardíacas , Humanos , Coeficiente Internacional Normatizado/métodos , Coeficiente Internacional Normatizado/estatística & dados numéricos , Dispositivos Lab-On-A-Chip/estatística & dados numéricos , Dispositivos Ópticos/estatística & dados numéricos , Testes Imediatos/estatística & dados numéricos , Polimetil Metacrilato , Tempo de Protrombina/métodos , Tempo de Protrombina/estatística & dados numéricos , Autoteste
6.
Preprint em Inglês | bioRxiv | ID: ppbiorxiv-459206

RESUMO

The ongoing COVID-19 pandemic perpetuated by SARS-CoV-2 variants, has highlighted the continued need for broadly protective vaccines that elicit robust and durable protection. Here, the vaccinia virus-based, replication-defective Sementis Copenhagen Vector (SCV) was used to develop a first-generation COVID-19 vaccine encoding the spike glycoprotein (SCV-S). Vaccination of mice rapidly induced polyfunctional CD8 T cells with cytotoxic activity and robust Th1-biased, spike-specific neutralizing antibodies, which are significantly increased following a second vaccination, and contained neutralizing activity against the alpha and beta variants of concern. Longitudinal studies indicated neutralizing antibody activity was maintained up to 9 months post-vaccination in both young and aging mice, with durable immune memory evident even in the presence of pre-existing vector immunity. This immunogenicity profile suggests a potential to expand protection generated by current vaccines in a heterologous boost format, and presents a solid basis for second-generation SCV-based COVID-19 vaccine candidates incorporating additional SARS-CoV-2 immunogens.

7.
Wiad Lek ; 74(4): 915-922, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34156004

RESUMO

OBJECTIVE: The aim: To carry out a comparative statistical analysis of obstetric and perinatal complications in singleton and multiple pregnancies once assisted reproductive technologies (ART) are applied according to the records taken from archival materials (maternity and delivery records) and identify the clinical features of multiple pregnancy. PATIENTS AND METHODS: Materials and methods: Over the period of 2017-2019, 522 women gave birth in LELEKA Maternity Hospital LLC after using assisted reproductive technologies and 331 women among them were followed-up in the women's health center of LELEKA maternity hospital. Among these women (522) with singleton pregnancy 445 women gave birth, while in multiple pregnancy - 77. The statistical analysis of 150 maternity and delivery records was carried out. All pregnant women were divided into two groups: group 1 - 75 women having singleton pregnancy after ART; group 2 - 75 women having multiple pregnancy after ART. Women getting pregnant after ART, or in vitro fertilization (IVF) and five-day frozen embryo transfer to be exact, turned out to be the selection criterion for a comparative statistical analysis. Mathematical methods for research were used as O.P. Mintser (2013) suggested. The reliability of the digit cancellation test was calculated using the Fisher's exact test and Student's T-test. Graphs were designed using Microsoft Excel. RESULTS: Results: The complications of early multiple pregnancy were the following: anemia (47.8% as opposed to 22.9%, p<0.01), placental insufficiency (43.3% in contrast to 22.9%, p<0.01), threatened abortion (41.8% in contrast to 28.6%, p<0.01). The complications in late pregnancy are as follows: preeclampsia (52.7% as opposed to 20.6%, p <0.01), intrauterine growth restriction (20.0% as opposed to 7.4%, p <0.01), anemia in pregnancy (76.4% in contrast to 32.4%, p<0.01), placental insufficiency (47.3% in contrast to 22.1%, p<0.05). CONCLUSION: Conclusions: Multiple pregnancy is a high risk for anemia in pregnancy, preeclampsia, placental insufficiency, early intrauterine growth restriction and fetal distress in pregnancy and labor. It predetermines the high level of a caesarean section. Therefore, further research aimed at prediction and prevention of obstetric and perinatal complications in multiple pregnancy after ART is currently topical.


Assuntos
Cesárea , Resultado da Gravidez , Cesárea/efeitos adversos , Feminino , Fertilização in vitro , Humanos , Placenta , Gravidez , Resultado da Gravidez/epidemiologia , Gravidez Múltipla , Reprodutibilidade dos Testes , Técnicas de Reprodução Assistida , Estudos Retrospectivos
8.
Wiad Lek ; 74(4): 940-947, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34156008

RESUMO

OBJECTIVE: The aim: To carry out a statistical analysis of physical and reproductive health characteristics in women after ineffective reattempts of using assisted reproductive technologies and identify significant medical and social factors contributing to the development of chronic endometritis. PATIENTS AND METHODS: Materials and methods: We carried out a statistical analysis involving 177 outpatient medical records: group 1 includes 127 women aged under 45 with two or more ineffective attempts of in vitro fertilization; group 2 comprised 50 healthy women without reproductive disorders. The complete physical exam included past history, clinical and gynecologic examination, lab techniques and medical imaging according to outpatient medical records obtained during the follow-up care in Isida-IVF Medical Center LLC. Chronic endometritis was recognized by means of histologic examination of endometrium, with the samples obtained by an endometrial pipelle biopsy on day 4-9 of the menstrual cycle. RESULTS: Results: The prevalence of pelvic inflammatory disease in patients of group 1 comprised 47.2%, endometritis - 41.7%; p1.2 <0.01. The prevalence of acute endometritis among patients of group 1 comprised 6.3%; p1.2 >0.05 and was associated with an infection after abortion. In group 1, sexually transmitted infections were reported in 67.7% of patients, p1.2> 0.05, bacterial vaginosis was registered 1.5 times more often - 28.4%; p1.2 <0.05. In group 1, single induced abortion was reported in 15.0%, while 2 times it took place in 15.7% (p1.2 <0.05). Laparoscopies were previously performed in 59.8% of women, laparotomies - in 62.2%, while in 25.4% of women these interventions were reperformed. Unilateral salpingectomy, due to ectopic pregnancy, was performed in 25.4% of women, bilateral - in 12.7%. Fallopian tube removal, due to sactosalpinx, was performed in 25.4% of women, unilateral salpingectomy took place in 3.9% of cases. The most significant risk factors of chronic endometritis in groups studied are acute postabortal endometritis, RR (relative risk) = 1.439, p = 0.029 and postoperative peritonitis provoked by the complications of appendectomy, RR = 1.430, p = 0.084. We detected none of significant effects of pelvic inflammatory disease on the development of chronic endometritis (RR = 45.132, Confidence interval (CI) (6.151-331.167), p = 0.001). The analysis of reproductive failures, as a risk factor of chronic endometritis in women of group 1, showed a significant relative risk: with the past history of premature birth, RR = 1.44, p = 0.039, in case of reattempts of induced abortions, RR = 1.5, p<0.001, Spontaneous miscarriage RR = 1.572, p = 0.001. A higher relative risk of developing chronic endometritis was observed during pregnancy - RR = 1.597, p = 0.001. CONCLUSION: Conclusions: Statistical analysis of women's reproductive health after ineffective reattempts of using ART revealed that the high rate of fetal interventions, low rate of alternative and safe abortion methods are registered in these women, as well as the nonavailability of any system of health measures after reproductive failures. A significant increase in miscarriage at early stages takes place, as well as the absence of a tendency for preterm labor to decrease in the rate. Maintaining women's reproductive health is a considerable medical and social issue, whose resolving depends on joint efforts of governmental and public entities, healthcare agencies and the population responsibility for own health. Designing and adopting the program of preconception care and planning for pregnancy in women after ineffective reattempts of using ART, with chronic endometritis as a primary disease, should be the top priority area of a health care system.


Assuntos
Aborto Espontâneo , Gravidez Ectópica , Feminino , Fertilização in vitro , Humanos , Recém-Nascido , Gravidez , Saúde Reprodutiva , Técnicas de Reprodução Assistida
9.
Cureus ; 13(12): e20568, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35103147

RESUMO

Here, we present a case of kidney and inferior vena cava abnormalities with leg thrombosis (KILT) syndrome, which consists of the triad of congenital kidney anomalies, inferior vena cava anomalies, and deep venous thrombosis. KILT syndrome is usually an incidental finding while investigating other conditions.

10.
Int J Pediatr ; 2020: 7546954, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32695189

RESUMO

BACKGROUND: Infections transmitted from mother to child (MTCT) during pregnancy, childbirth, and breastfeeding contribute significantly to the high infant and childhood morbidity and mortality in sub-Saharan African countries. The most significant and preventable of these include HIV, syphilis, and rubella. To achieve elimination, mothers need to be aware of and to understand effective preventive measures against these infections. Lack of comprehensive knowledge on transmission and prevention of MTCT infections is one of the factors hindering achievement of the elimination goals for these infections. The aim of this study was to assess the knowledge of HIV, syphilis, rubella, and associated factors among mothers in the Kilimanjaro region of Tanzania. METHODS: We conducted a community-based cross-sectional study in three districts of the Kilimanjaro region from September to October 2016. The study involved mothers with children up to five years of age. Data collection involved the use of a questionnaire, administered by face-to-face interviews. Logistic regression analysis was used to assess predictors of mothers' knowledge on MTCT infections. RESULTS: A total of 618 mothers were recruited, with a mean age of 29.6 (SD 7.6) years. The overall knowledge on MTCT infections was low. The highest level of knowledge on MTCT infections was regarding HIV (89.2%). Fewer mothers had knowledge of syphilis (27.8%). Rubella was the least known; only 12% of mothers were aware of rubella infection. District of residence and having knowledge of syphilis were predictors for rubella knowledge, while for syphilis knowledge, significant predictors were age group, occupation, and those having knowledge on HIV and rubella. Predictors for HIV knowledge were residential district, having a mobile phone, and those having knowledge of syphilis and rubella. CONCLUSIONS: This study confirmed that mothers have low overall knowledge on MTCT infections. To achieve the MTCT elimination goals, targeted interventions to improve knowledge among women of childbearing age are recommended.

11.
NPJ Vaccines ; 5(1): 44, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32550013

RESUMO

The Sementis Copenhagen Vector (SCV) is a new vaccinia virus-derived, multiplication-defective, vaccine technology assessed herein in non-human primates. Indian rhesus macaques (Macaca mulatta) were vaccinated with a multi-pathogen recombinant SCV vaccine encoding the structural polyproteins of both Zika virus (ZIKV) and chikungunya virus (CHIKV). After one vaccination, neutralising antibody responses to ZIKV and four strains of CHIKV, representative of distinct viral genotypes, were generated. A second vaccination resulted in significant boosting of neutralising antibody responses to ZIKV and CHIKV. Following challenge with ZIKV, SCV-ZIKA/CHIK-vaccinated animals showed significant reductions in viremias compared with animals that had received a control SCV vaccine. Two SCV vaccinations also generated neutralising and IgG ELISA antibody responses to vaccinia virus. These results demonstrate effective induction of immunity in non-human primates by a recombinant SCV vaccine and illustrates the utility of SCV as a multi-disease vaccine platform capable of delivering multiple large immunogens.

12.
J Neurol ; 267(10): 2790-2796, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32494856

RESUMO

The outbreak of a severe acute respiratory syndrome caused by a novel coronavirus (COVID-19), has raised health concerns for patients with multiple sclerosis (MS) who are commonly on long-term immunotherapies. Managing MS during the pandemic remains challenging with little published experience and no evidence-based guidelines. We present five teriflunomide-treated patients with MS who subsequently developed active COVID-19 infection. The patients continued teriflunomide therapy and had self-limiting infection, without relapse of their MS. These observations have implications for the management of MS in the setting of the COVID-19 pandemic.


Assuntos
Infecções por Coronavirus/complicações , Crotonatos/uso terapêutico , Imunossupressores/uso terapêutico , Esclerose Múltipla/complicações , Esclerose Múltipla/tratamento farmacológico , Pneumonia Viral/complicações , Toluidinas/uso terapêutico , Adulto , Idoso , Betacoronavirus , COVID-19 , Feminino , Humanos , Hidroxibutiratos , Masculino , Pessoa de Meia-Idade , Nitrilas , Pandemias , SARS-CoV-2
13.
Vaccines (Basel) ; 8(2)2020 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-32380760

RESUMO

Chikungunya virus (CHIKV), Ross River virus (RRV), o'nyong nyong virus (ONNV), Mayaro virus (MAYV) and Getah virus (GETV) represent arthritogenic alphaviruses belonging to the Semliki Forest virus antigenic complex. Antibodies raised against one of these viruses can cross-react with other serogroup members, suggesting that, for instance, a CHIKV vaccine (deemed commercially viable) might provide cross-protection against antigenically related alphaviruses. Herein we use human alphavirus isolates (including a new human RRV isolate) and wild-type mice to explore whether infection with one virus leads to cross-protection against viremia after challenge with other members of the antigenic complex. Persistently infected Rag1-/- mice were also used to assess the cross-protective capacity of convalescent CHIKV serum. We also assessed the ability of a recombinant poxvirus-based CHIKV vaccine and a commercially available formalin-fixed, whole-virus GETV vaccine to induce cross-protective responses. Although cross-protection and/or cross-reactivity were clearly evident, they were not universal and were often suboptimal. Even for the more closely related viruses (e.g., CHIKV and ONNV, or RRV and GETV), vaccine-mediated neutralization and/or protection against the intended homologous target was significantly more effective than cross-neutralization and/or cross-protection against the heterologous virus. Effective vaccine-mediated cross-protection would thus likely require a higher dose and/or more vaccinations, which is likely to be unattractive to regulators and vaccine manufacturers.

14.
BMC Pregnancy Childbirth ; 20(1): 285, 2020 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-32393191

RESUMO

BACKGROUND: Early initiation of breastfeeding (EIBF) is a predetermining factor for exclusive breastfeeding, and thus a foundation for optimal breastfeeding practices. Rates of EIBF are low globally (42%) and in Tanzania (51%), yet few studies have been done on this issue in Tanzania. This study aimed to determine the prevalence and factors associated with early initiation of breastfeeding among women in northern Tanzania. METHODOLOGY: This study extracted information from a cohort of 536 women who were followed from 3rd trimester period October 2013 to December 2015 in Moshi municipal, northern Tanzania. The data for this paper was collected by the use of questionnaires at enrolment, delivery and 7 days after delivery. The analysis is based on data from 413 women for whom complete information was obtained. Log binomial regression analysis was used to determine factors associated with early initiation of breastfeeding. RESULTS: The prevalence of EIBF was 83%. Overall, women had high knowledge on colostrum (94%), knowledge on exclusive breastfeeding (81%) and time of breastfeeding initiation (71%), but only 54% were counseled on breastfeeding during antenatal care. Knowledge on timely initiation of breastfeeding during pregnancy and vaginal delivery were associated with EIBF. CONCLUSION: Early initiation of breastfeeding is high (83%) in Moshi Municipal but still below the universal coverage recommended by WHO and UNICEF. There is missed opportunity by health facilities to counsel and support early initiation of breastfeeding given high antenatal and facility delivery in this setting. There is a need to evaluate health facility bottle necks to optimal support of early initiation of breastfeeding in Tanzania.


Assuntos
Aleitamento Materno/estatística & dados numéricos , Mães/estatística & dados numéricos , Adulto , Parto Obstétrico/estatística & dados numéricos , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Inquéritos Epidemiológicos , Humanos , Razão de Chances , Gravidez , Cuidado Pré-Natal/estatística & dados numéricos , Prevalência , Fatores Socioeconômicos , Tanzânia/epidemiologia , Fatores de Tempo , Adulto Jovem
15.
BMC Immunol ; 21(1): 27, 2020 05 18.
Artigo em Inglês | MEDLINE | ID: mdl-32423478

RESUMO

BACKGROUND: HLA class II tetramers can be used for ex vivo enumeration and phenotypic characterisation of antigen-specific CD4+ T cells. They are increasingly applied in settings like allergy, vaccination and autoimmune diseases. Rheumatoid arthritis (RA) is a chronic autoimmune disorder for which many autoantigens have been described. RESULTS: Using multi-parameter flow cytometry, we developed a multi-HLA class II tetramer approach to simultaneously study several antigen specificities in RA patient samples. We focused on previously described citrullinated HLA-DRB1*04:01-restricted T cell epitopes from α-enolase, fibrinogen-ß, vimentin as well as cartilage intermediate layer protein (CILP). First, we examined inter-assay variability and the sensitivity of the assay in peripheral blood from healthy donors (n = 7). Next, we confirmed the robustness and sensitivity in a cohort of RA patients with repeat blood draws (n = 14). We then applied our method in two different settings. We assessed lymphoid tissue from seropositive arthralgia (n = 5) and early RA patients (n = 5) and could demonstrate autoreactive T cells in individuals at risk of developing RA. Lastly, we studied peripheral blood from early RA patients (n = 10) and found that the group of patients achieving minimum disease activity (DAS28 < 2.6) at 6 months follow-up displayed a decrease in the frequency of citrulline-specific T cells. CONCLUSIONS: Our study demonstrates the development of a sensitive tetramer panel allowing simultaneous characterisation of antigen-specific T cells in ex vivo patient samples including RA 'at risk' subjects. This multi-tetramer approach can be useful for longitudinal immune-monitoring in any disease with known HLA-restriction element and several candidate antigens.


Assuntos
Artrite Reumatoide/tratamento farmacológico , Linfócitos T CD4-Positivos/efeitos dos fármacos , Citrulina/uso terapêutico , Antígenos de Histocompatibilidade Classe II/metabolismo , Adulto , Idoso , Artrite Reumatoide/metabolismo , Linfócitos T CD4-Positivos/metabolismo , Epitopos de Linfócito T/efeitos dos fármacos , Epitopos de Linfócito T/metabolismo , Proteínas da Matriz Extracelular/metabolismo , Feminino , Fibrinogênio/metabolismo , Citometria de Fluxo/métodos , Humanos , Masculino , Pessoa de Meia-Idade , Pirofosfatases/metabolismo , Vimentina/uso terapêutico
16.
Wiad Lek ; 72(5 cz 1): 753-756, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31175766

RESUMO

OBJECTIVE: Introduction: The search for new mechanisms of their interconnection and effective pharmacological correction of gastroesophageal reflux disease (GERD) for comorbidity with stable angina of tension (SAT). The aim: To establish the role of nitrogen monoxide (NO) in the pathogenesis of GERD in patients with SAT and to study the effectiveness of the correction of the basic therapy of SAT in order to eliminate the clinical manifestations of GERD and prevent its development. PATIENTS AND METHODS: Materials and methods: 88 patients with SAT with a comorbid GERD were examined. We determined clinical symptoms, the level of stable NO metabolites, calculated the number of nitroglycerin tablets taken one week. All patients (2 groups) received baseline therapy for GERD and SAT. In this case, the patients of the 2nd group (45 persons) received therapy with the exception of long-acting nitrates and, in addition, meldonium for 30 days. RESULTS: Results:With the exception of the use of nitro-containing drugs and adding to the basic therapy of SAT the drug meldonium we faster (p<0,05) achieved a regression of clinical symptoms of GERD and decrease in the level of metabolites NO molecule in patients with SAT. CONCLUSION: Conclusion: In the case of the exclusion of the intake of long-acting nitrates with the adding of meldonium to the basal therapy of the SAT and the GERD the content of metabolites of nitrogen monoxide in the blood is more normalized, which correlates with a decrease in the frequency of GERD symptoms in patients with SAT and GERD.


Assuntos
Angina Estável , Refluxo Gastroesofágico , Comorbidade , Humanos , Óxido Nítrico
17.
Int J MCH AIDS ; 8(1): 32-43, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31049262

RESUMO

BACKGROUND: Exclusive breastfeeding (EBF) has many benefits to the child from mental to physical growth and development; however, methods of measuring EBF have raised a number of policy and programmatic questions. This study assesses EBF rates and factors associated with EBF practices in Northern Tanzania using two different methodologies, namely, the 24-hours recall and recall-since-birth. METHODS: A cohort study was conducted from October 2013 to December 2015 among mother-infants' pairs. Mothers with child delivery information (N=430) were followed and included in the analyses. We enrolled pregnant women who were in their third trimesters and interviewed them with the help of questionnaires at enrollment, delivery, 7 days and thereafter monthly up to nine months after delivery. At each visit after delivery, information on breastfeeding using the two methods (24 hours recall and recall-since-birth) was collected. RESULTS: The prevalence of EBF dropped from one month to six months when using both the 24 hours recall and the recall since birth methods, but at different rates. At six months, 24.2% of the mothers practiced EBF when measured with the recall since birth method, compared to 38.8% when measured with the 24 hour recall. Predictors of EBF were also different. When using the recall since birth method, women who had received counseling on infant feeding had increased odds of practicing EBF compared to those who did not receive counseling, [AOR=2.3; 95% CI (1.2, 3.7)]. When using 24 hours recall, women who were unemployed had increased odds of practicing EBF compared to those who were employed [AOR=1.5;95% CI(1.1,2.5)], and women aged 35 - 49 years had decreased odds of practicing EBF compared to younger women[AOR=0.28; 95 % CI(0.1,0.7)]. CONCLUSIONS AND GLOBAL HEALTH IMPLICATIONS: The two methods for EBF give substantially different results, both in the prevalence of EBF and factors associated with EBF. The higher EBF obtained with 24 hours recall represents an overestimation and thereby an overly positive picture of the situation.

18.
Int J Pediatr ; 2019: 8651010, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30853994

RESUMO

BACKGROUND: Breastfeeding is the best way to feed infants. It is a simple intervention to improve child health and development. Despite its advantages, there is a low global rate of exclusive breastfeeding (EBF) and, in Kilimanjaro region, Tanzania, EBF is rarely practiced. The aim of this paper is to explore social and cultural factors that might influence the practice of breastfeeding and exclusive breastfeeding in Kilimanjaro region. METHODS: A qualitative design was used. Three districts in Kilimanjaro region, namely, Same, Moshi Municipal Council, and Rombo, were selected. In each district three focus group discussions (FGDs) were conducted with mothers with infants aged 0-12 months. RESULTS: A total of 78 mothers participated in the focus group discussions. A majority of the mothers were positive towards breastfeeding. They believed that it prevents child sickness, creates happiness, and is good for family economy. Despite the positive attitudes, the mothers revealed many perceptions that interfered with breastfeeding and exclusive breastfeeding. These included the following: breast milk is very light and has bad odor, breastfeeding may affect mothers appearance, chango (abdominal pain) has to be treated, there is fear of the evil eye when breastfeeding in public places, breast milk may become unclean, and there is a need of pauses in breastfeeding after the child has burped on the breast. CONCLUSION: There are beliefs that promote the practice of breastfeeding in this setting; these local beliefs could be used to develop breastfeeding messages to improve breastfeeding practices. However, there is also a need to address beliefs that interfere with the practice of exclusive breastfeeding in this setting.

19.
Rheumatology (Oxford) ; 58(6): 1075-1085, 2019 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-30649469

RESUMO

OBJECTIVES: The exact underlying mechanism of rituximab treatment in patients with RA is poorly defined and knowledge about the effect of B cell depletion on immune cells in secondary lymphoid organs is lacking. We analysed lymphoid tissue responses to rituximab in RA patients. METHODS: Fourteen RA patients received 2 × 1000 mg rituximab intravenously, and lymph node (LN) biopsies were obtained before and 4 weeks after the first infusion. Tissues were examined by flow cytometry, immunohistochemistry and quantitative PCR. LN biopsies from five healthy individuals (HC) served as controls. RESULTS: LN biopsies of RA patients showed increased frequencies of CD21+CD23+IgDhighIgMvariable follicular B cells and CD3+CD25+CD69+ early activated, tissue resident T cells when compared with HCs. After treatment, there was incomplete depletion of LN B cells. There was a significant decrease in CD27-IgD+ naïve B cells, and CD27+IgD+ unswitched memory B cells including the CD27+IgD+IgM+ subset and follicular B cells. Strikingly, CD27+IgD- switched memory B cells persisted in LN biopsies after rituximab treatment. In the T cell compartment, a significant decrease was observed in the frequency of early activated, tissue resident T cells after rituximab treatment, but late activated T cells persisted. B cell proliferation inducing cytokine IL-21 was higher expressed in LN biopsies of RA patients compared with HC and expression was not affected by rituximab treatment. CONCLUSION: Rituximab does not cure RA, possibly due to persistence of switched memory B cells in lymphoid tissues suggesting that factors promoting B cell survival and differentiation need to be additionally targeted.


Assuntos
Antirreumáticos/farmacologia , Artrite Reumatoide/tratamento farmacológico , Subpopulações de Linfócitos B/efeitos dos fármacos , Linfonodos/efeitos dos fármacos , Rituximab/farmacologia , Subpopulações de Linfócitos T/efeitos dos fármacos , Adulto , Idoso , Antirreumáticos/uso terapêutico , Artrite Reumatoide/imunologia , Artrite Reumatoide/patologia , Subpopulações de Linfócitos B/imunologia , Subpopulações de Linfócitos B/patologia , Biópsia , Feminino , Humanos , Linfonodos/imunologia , Linfonodos/patologia , Masculino , Pessoa de Meia-Idade , Rituximab/uso terapêutico , Subpopulações de Linfócitos T/imunologia , Subpopulações de Linfócitos T/patologia
20.
Can J Infect Dis Med Microbiol ; 2018: 5406467, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30515253

RESUMO

We sought to investigate the prevalence of potentially pathogenic bacteria in secretions and tonsillar tissues of children with chronic adenotonsillitis hypertrophy compared to controls. Prospective case-control study comparing patients between 2 and 12 years old who underwent adenotonsillectomy due to chronic adenotonsillar hypertrophy to children without disease. We compared detection of Streptococcus pneumoniae, Haemophilus influenzae, Staphylococcus aureus, Pseudomonas aeruginosa, and Moraxella catarrhalis by real-time PCR in palatine tonsils, adenoids, and nasopharyngeal washes obtained from 37 children with and 14 without adenotonsillar hypertrophy. We found high frequency (>50%) of Haemophilus influenzae, Streptococcus pneumoniae, Moraxella catarrhalis, and Pseudomonas aeruginosa in both groups of patients. Although different sampling sites can be infected with more than one bacterium and some bacteria can be detected in different tissues in the same patient, adenoids, palatine tonsils, and nasopharyngeal washes were not uniformly infected by the same bacteria. Adenoids and palatine tonsils of patients with severe adenotonsillar hypertrophy had higher rates of bacterial coinfection. There was good correlation of detection of Moraxella catarrhalis in different sampling sites in patients with more severe tonsillar hypertrophy, suggesting that Moraxella catarrhalis may be associated with the development of more severe hypertrophy, that inflammatory conditions favor colonization by this agent. Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae, and Moraxella catarrhalis are frequently detected in palatine tonsils, adenoids, and nasopharyngeal washes in children. Simultaneous detection of Moraxella catarrhalis in adenoids, palatine tonsils, and nasopharyngeal washes was correlated with more severe tonsillar hypertrophy.

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