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1.
Proc Natl Acad Sci U S A ; 119(49): e2123487119, 2022 12 06.
Artigo em Inglês | MEDLINE | ID: mdl-36454749

RESUMO

Hexanucleotide G4C2 repeat expansions in the C9orf72 gene are the most common genetic cause of amyotrophic lateral sclerosis and frontotemporal dementia. Dipeptide repeat proteins (DPRs) generated by translation of repeat-containing RNAs show toxic effects in vivo as well as in vitro and are key targets for therapeutic intervention. We generated human antibodies that bind DPRs with high affinity and specificity. Anti-GA antibodies engaged extra- and intra-cellular poly-GA and reduced aggregate formation in a poly-GA overexpressing human cell line. However, antibody treatment in human neuronal cultures synthesizing exogenous poly-GA resulted in the formation of large extracellular immune complexes and did not affect accumulation of intracellular poly-GA aggregates. Treatment with antibodies was also shown to directly alter the morphological and biochemical properties of poly-GA and to shift poly-GA/antibody complexes to more rapidly sedimenting ones. These alterations were not observed with poly-GP and have important implications for accurate measurement of poly-GA levels including the need to evaluate all centrifugation fractions and disrupt the interaction between treatment antibodies and poly-GA by denaturation. Targeting poly-GA and poly-GP in two mouse models expressing G4C2 repeats by systemic antibody delivery for up to 16 mo was well-tolerated and led to measurable brain penetration of antibodies. Long-term treatment with anti-GA antibodies produced improvement in an open-field movement test in aged C9orf72450 mice. However, chronic administration of anti-GA antibodies in AAV-(G4C2)149 mice was associated with increased levels of poly-GA detected by immunoassay and did not significantly reduce poly-GA aggregates or alleviate disease progression in this model.


Assuntos
Genes Reguladores , Poli A , Animais , Humanos , Camundongos , Complexo Antígeno-Anticorpo , Proteína C9orf72/genética , Dipeptídeos , Modelos Animais de Doenças
2.
Anal Chem ; 94(2): 1169-1177, 2022 01 18.
Artigo em Inglês | MEDLINE | ID: mdl-34932902

RESUMO

In this study, for the first time, the automated digestion and sequencing of an RNA molecule via the use of immobilized RNase cartridges attached to a multidimensional liquid chromatography (LC)-mass spectrometry (MS) system are presented. We first developed an on-line digestion-HILIC two-dimensional (2D)-LC-MS method in order to sequence CRISPR guide RNAs for gene editing. Three RNases (T1, A, and U2) were immobilized on polyetheretherketone cartridges, and their performance was evaluated. Ultrafast digestions were performed within 2.3 min with the on-line approach versus 30 min via the conventional off-line approach. The higher sequence coverage was achieved by the RNase T1 (71%), which is the same as the off-line mode. A 20-fold reduction in the gRNA sample amount was achieved with the on-line digestion approach (6.5 µg) in comparison to that with the off-line approach (130 µg). In the second step, a three-dimensional (3D)-LC-MS method was developed for the sequencing of fractions collected on-line across the main peak and the partially separated tail by the reference ion-pairing RPLC method. Additional insights were gained in order to better understand the cause of the main peak tailing.


Assuntos
RNA Guia de Cinetoplastídeos , Ribonucleases , Cromatografia Líquida/métodos , Repetições Palindrômicas Curtas Agrupadas e Regularmente Espaçadas , Espectrometria de Massas em Tandem
3.
Bioorg Med Chem ; 50: 116455, 2021 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-34757295

RESUMO

Natural products have routinely been used both as sources of and inspiration for new crop protection active ingredients. The natural product UK-2A has potent anti-fungal activity but lacks key attributes for field translation. Post-fermentation conversion of UK-2A to fenpicoxamid resulted in an active ingredient with a new target site of action for cereal and banana pathogens. Here we demonstrate the creation of a synthetic variant of fenpicoxamid via identification of the structural elements of UK-2A that are needed for anti-fungal activity. Florylpicoxamid is a non-macrocyclic active ingredient bearing two fewer stereocenters than fenpicoxamid, controls a broad spectrum of fungal diseases at low use rates and has a concise, scalable route which is aligned with green chemistry principles. The development of florylpicoxamid represents the first example of using a stepwise deconstruction of a macrocyclic natural product to design a fully synthetic crop protection active ingredient.


Assuntos
Antifúngicos/farmacologia , Produtos Biológicos/farmacologia , Descoberta de Drogas , Compostos Macrocíclicos/farmacologia , Piridinas/farmacologia , Antifúngicos/síntese química , Antifúngicos/química , Ascomicetos/efeitos dos fármacos , Produtos Biológicos/síntese química , Produtos Biológicos/química , Relação Dose-Resposta a Droga , Compostos Macrocíclicos/síntese química , Compostos Macrocíclicos/química , Testes de Sensibilidade Microbiana , Estrutura Molecular , Piridinas/síntese química , Piridinas/química , Relação Estrutura-Atividade
4.
Phys Chem Chem Phys ; 23(10): 5992-5998, 2021 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-33666602

RESUMO

The LiNi0.33Mn0.33Co0.33O2 compound is one of the most interesting cathode materials for Li-ion batteries. Li diffusion in this material directly influences charging/discharging times (and consequently power densities), maximum capacities, stress formation and possible side reactions. In the present study Li tracer self-diffusion is investigated in polycrystalline sintered bulk samples with an average grain size of about 50 nm in the temperature range between 110 and 350 °C. For analysis, stable 6Li tracers are used in combination with Secondary Ion Mass Spectrometry (SIMS). The diffusivities can be described by the Arrhenius law with an activation enthalpy of (0.85 ± 0.03) eV, which is interpreted as the migration energy of a single Li vacancy. Lithium diffuses via structural vacancies whose concentration is fixed by a Li deficiency of about 10%. An extrapolation of the diffusivities to room temperature gives significantly lower values than the diffusivities obtained by electrochemical measurements in literature.

5.
J Fish Biol ; 98(1): 44-49, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32964452

RESUMO

The slowing of growth as fish age has long been believed to be related to energy expenditure for maturation, and this rationalization has been used to explain why, across nearly all fish species, the relationship between size at first maturity (Lm ) and maximum (Lmax ) or asymptotic length (L∞ ) is relatively constant. In contrast, the Gill-Oxygen Limitation Theory (GOLT) postulates that (a) fish growth slows because as they grow, their two-dimensional ability to extract oxygen from the water diminishes relative to their three-dimensional weight gain, and (b) they can only invest energy for maturation if oxygen supply at their size at first maturity (Qm ) exceeds that needed for maintenance metabolism (Q∞ ). It has been reported previously across dozens of marine fish species that the relationship between Qm and Q∞ is linear and, further, it can be mathematically converted to Lm vs. L∞ by raising both terms to the power of D (the gill surface factor), resulting in a slope of 1.36. If the GOLT is universal, a similar slope should exist for Lm D vs. L∞ D relationships for freshwater species across multiple individual populations that reside in disparate habitats, although to our knowledge this has never been evaluated. For analysis, we used existing data from previous studies conducted on 51 stream-dwelling populations of redband trout Oncorhynchus mykiss gairdneri, Yellowstone cutthroat trout O. clarkii bouvieri and mountain whitefish Prosopium williamsoni. The resulting Lm D vs. L∞ D slopes combining all data points (1.35) or for all species considered separately (range = 1.29-1.40) were indeed equivalent to the slope originally produced for the marine species from which the GOLT-derived relationship was first reported. We briefly discuss select papers both supporting and resisting various aspects of the GOLT, note that it could potentially explain shrinking sizes of marine fish, and call for more concerted research efforts combining laboratory and field expertise in fish growth research.


Assuntos
Tamanho Corporal/fisiologia , Brânquias/fisiologia , Oxigênio/metabolismo , Salmonidae/fisiologia , Maturidade Sexual/fisiologia , Movimentos da Água , Animais , Ecossistema , Metabolismo Energético , Rios
6.
Scand J Clin Lab Invest ; 80(2): 133-138, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31846346

RESUMO

One of the main requirements in point-of-care testing (POCT) is efficient operator training to avoid diagnostic errors. Considering a variety of users and time-independent learning, e-learning is preferred. However, in our experience, e-learning is not always accepted by employees. After using a commercial e-learning program with little success, we developed a specific e-learning offer to achieve a better acceptance of online-based training. Herein our goal was to identify the most relevant aspects for better acceptance. The new e-learning modules were implemented with the learning management system ILIAS and dealt with typical sources of error. The implementation was accompanied by an anonymous online questionnaire within the POCT operators examining differences between the acceptance of the commercial e-learning and the hospital-specific. The results show higher acceptance for clinic-specific e-learning whereby online training of the POCT operators could successfully established. Most relevant aspects are the relevance of contents for the personal work and the working processes within the clinic as well as processing time. Thereby, the recertification of the POCT operators based on the successful completion of the learning modules was fully integrated in the POCT process. In respect to the need for regular recertification of POCT operators, our study shows that the acceptance of e-learning could be improved by adapting e-learning modules to the specific workflows in the hospital.


Assuntos
Instrução por Computador , Pessoal de Saúde/educação , Testes Imediatos , Adulto , Análise Química do Sangue/instrumentação , Análise Química do Sangue/normas , Gasometria/instrumentação , Gasometria/métodos , Glicemia/análise , Instrução por Computador/métodos , Alemanha , Humanos , Internet , Sistemas Automatizados de Assistência Junto ao Leito , Testes Imediatos/organização & administração , Faculdades de Medicina , Inquéritos e Questionários
8.
J Immunol ; 197(9): 3650-3661, 2016 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-27683748

RESUMO

Dynamic changes of adipose tissue leukocytes, including adipose tissue macrophage (ATM) and adipose tissue dendritic cells (ATDCs), contribute to obesity-induced inflammation and metabolic disease. However, clear discrimination between ATDC and ATM in adipose tissue has limited progress in the field of immunometabolism. In this study, we use CD64 to distinguish ATM and ATDC, and investigated the temporal and functional changes in these myeloid populations during obesity. Flow cytometry and immunostaining demonstrated that the definition of ATM as F4/80+CD11b+ cells overlaps with other leukocytes and that CD45+CD64+ is specific for ATM. The expression of core dendritic cell genes was enriched in CD11c+CD64- cells (ATDC), whereas core macrophage genes were enriched in CD45+CD64+ cells (ATM). CD11c+CD64- ATDCs expressed MHC class II and costimulatory receptors, and had similar capacity to stimulate CD4+ T cell proliferation as ATMs. ATDCs were predominantly CD11b+ conventional dendritic cells and made up the bulk of CD11c+ cells in adipose tissue with moderate high-fat diet exposure. Mixed chimeric experiments with Ccr2-/- mice demonstrated that high-fat diet-induced ATM accumulation from monocytes was dependent on CCR2, whereas ATDC accumulation was less CCR2 dependent. ATDC accumulation during obesity was attenuated in Ccr7-/- mice and was associated with decreased adipose tissue inflammation and insulin resistance. CD45+CD64+ ATM and CD45+CD64-CD11c+ ATDCs were identified in human obese adipose tissue and ATDCs were increased in s.c. adipose tissue compared with omental adipose tissue. These results support a revised strategy for unambiguous delineation of ATM and ATDC, and suggest that ATDCs are independent contributors to adipose tissue inflammation during obesity.


Assuntos
Tecido Adiposo/imunologia , Células Dendríticas/imunologia , Inflamação/imunologia , Macrófagos/imunologia , Obesidade/imunologia , Animais , Células Cultivadas , Dieta Hiperlipídica , Perfilação da Expressão Gênica , Humanos , Imunofenotipagem , Resistência à Insulina , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Receptores CCR2/genética , Receptores CCR7/genética , Receptores de IgG/metabolismo
9.
Environ Sci Technol ; 51(12): 6745-6755, 2017 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-28535339

RESUMO

Annual cyanobacterial blooms dominated by Microcystis have occurred in western Lake Erie (U.S./Canada) during summer months since 1995. The production of toxins by bloom-forming cyanobacteria can lead to drinking water crises, such as the one experienced by the city of Toledo in August of 2014, when the city was rendered without drinking water for >2 days. It is important to understand the conditions and environmental cues that were driving this specific bloom to provide a scientific framework for management of future bloom events. To this end, samples were collected and metatranscriptomes generated coincident with the collection of environmental metrics for eight sites located in the western basin of Lake Erie, including a station proximal to the water intake for the city of Toledo. These data were used to generate a basin-wide ecophysiological fingerprint of Lake Erie Microcystis populations in August 2014 for comparison to previous bloom communities. Our observations and analyses indicate that, at the time of sample collection, Microcystis populations were under dual nitrogen (N) and phosphorus (P) stress, as genes involved in scavenging of these nutrients were being actively transcribed. Targeted analysis of urea transport and hydrolysis suggests a potentially important role for exogenous urea as a nitrogen source during the 2014 event. Finally, simulation data suggest a wind event caused microcystin-rich water from Maumee Bay to be transported east along the southern shoreline past the Toledo water intake. Coupled with a significant cyanophage infection, these results reveal that a combination of biological and environmental factors led to the disruption of the Toledo water supply. This scenario was not atypical of reoccurring Lake Erie blooms and thus may reoccur in the future.


Assuntos
Microcystis , Abastecimento de Água , Canadá , Cianobactérias , Eutrofização , Lagos
10.
Hosp Pharm ; 52(3): 221-228, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28439137

RESUMO

Objectives: The compatibility of vancomycin with existing and novel ß-lactam/ß-lactamase inhibitors at clinically relevant concentrations in 5% dextrose in water has not been fully explored to date. Methods: Vancomycin concentrations tested ranged from 5 to 20 mg/mL. Ceftazidime-avibactam was tested at 8, 20, and 40 mg/mL, ceftolozane-tazobactam at 15 mg/mL, and piperacillin-tazobactam at 28 mg/mL. Compatibility of drug admixtures were tested via both simulated and actual y-site infusion. For the simulated y-site compatibility assessment, 1:1 mixtures of each respective drug were analyzed over 24 hours. Actual y-site infusion followed a 4-hour extended-infusion protocol, with aliquots tested hourly for 4 hours. At all time points, the compatibility of each admixture was determined using 6 different methods: visual, microscopic, Tyndall beam, nephelometric, pH, and microbiologic bioassay assessment. If any admixture failed any one of these 6 assays, it was considered incompatible. Any combination deemed incompatible was filtered through a 0.22 µm filter and reanalyzed to assess impact of particle size. Results: There were no differences in compatibility categorizations between simulated and actual y-site infusion. There were no changes in compatibility over the time course of any experiment. Ceftazidime-avibactam at 8 mg/mL was incompatible with vancomycin at 5 mg/mL. The maximum compatible vancomycin concentrations were 5 mg/mL and 10 mg/mL with 20 and 40 mg/mL of ceftazidime-avibactam, respectively. Ceftolozane-tazobactam 15 mg/mL was compatible with vancomycin concentrations up to 10 mg/mL. The maximum compatible vancomycin concentration with piperacillin-tazobactam 28 mg/mL was 5 mg/mL. None of the ß-lactam/ß-lactamase inhibitors tested were compatible with 15 or 20 mg/mL of vancomycin. None of the admixtures considered incompatible by other methods displayed any decrease in antimicrobial activity as assessed by bioassay. After filtration, all admixtures originally deemed incompatible maintained their visual turbidity and microscopic particulate matter. Conclusions: Ceftazidime-avibactam prepared at the lowest concentration recommended in the package insert is incompatible with vancomycin. Ceftolozane-tazobactam did not display incompatibility until vancomycin concentrations above 10 mg/mL were tested. Piperacillin-tazobactam at a typical extended-infusion concentration is compatible with vancomycin in D5W. To our knowledge, this is the first study to assess compatibility of antibiotic admixtures via direct measurement of antimicrobial activity. The lack of any decrement in antibacterial activity of any apparently incompatible admixture and maintenance of incompatibility after passage through a 0.22 µm filter may suggest a lack of clinically relevant adverse effects when co-administered. Future compatibility studies should incorporate appropriate methods to accurately assess both efficacy and safety of co-administered drug products.

11.
Am J Hum Genet ; 90(4): 599-613, 2012 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-22482802

RESUMO

Recurrent deletions have been associated with numerous diseases and genomic disorders. Few, however, have been resolved at the molecular level because their breakpoints often occur in highly copy-number-polymorphic duplicated sequences. We present an approach that uses a combination of somatic cell hybrids, array comparative genomic hybridization, and the specificity of next-generation sequencing to determine breakpoints that occur within segmental duplications. Applying our technique to the 17q21.31 microdeletion syndrome, we used genome sequencing to determine copy-number-variant breakpoints in three deletion-bearing individuals with molecular resolution. For two cases, we observed breakpoints consistent with nonallelic homologous recombination involving only H2 chromosomal haplotypes, as expected. Molecular resolution revealed that the breakpoints occurred at different locations within a 145 kbp segment of >99% identity and disrupt KANSL1 (previously known as KANSL1). In the remaining case, we found that unequal crossover occurred interchromosomally between the H1 and H2 haplotypes and that this event was mediated by a homologous sequence that was once again missing from the human reference. Interestingly, the breakpoints mapped preferentially to gaps in the current reference genome assembly, which we resolved in this study. Our method provides a strategy for the identification of breakpoints within complex regions of the genome harboring high-identity and copy-number-polymorphic segmental duplication. The approach should become particularly useful as high-quality alternate reference sequences become available and genome sequencing of individuals' DNA becomes more routine.


Assuntos
Pontos de Quebra do Cromossomo , Cromossomos Humanos Par 17/genética , Análise de Sequência de DNA/métodos , Sequência de Bases , Deleção Cromossômica , Hibridização Genômica Comparativa/métodos , Variações do Número de Cópias de DNA , Haplótipos , Recombinação Homóloga , Humanos , Dados de Sequência Molecular , Duplicações Segmentares Genômicas , Síndrome de Smith-Magenis
13.
J Org Chem ; 80(17): 8511-9, 2015 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-26079383

RESUMO

The total synthesis of (-)-amphidinolide K (1) based on asymmetric addition of allylsilane C1-C8 to enal C9-C22 is reported. The 1,9,18-tris-O-TBDPS ether was converted into the desired 9,18-dihydroxy acid. Its macrolactonization was accomplished by the Shiina method. Compound 1 together with some of its stereoisomers and analogues were subjected to evaluation of the possible disruption of the α,ß-tubulin-microtubule and/or G-actin-F-actin equilibria. Compound 1 behaves as a stabilizer of actin filaments (F-actin) in vitro.


Assuntos
Actinas/química , Antibacterianos/síntese química , Macrolídeos/síntese química , Tubulina (Proteína)/química , Antibacterianos/química , Macrolídeos/química , Estrutura Molecular , Estereoisomerismo
14.
Mol Ecol ; 22(11): 3090-7, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23452191

RESUMO

To elucidate the mechanisms of thermal adaptation and acclimation in ectothermic aquatic organisms from differing climates, we used a common-garden experiment for thermal stress to investigate the heat shock response of redband trout (Oncorhynchus mykiss gairdneri) from desert and montane populations. Evidence for adaptation was observed as expression of heat shock genes in fish from the desert population was more similar to control (unstressed) fish and significantly different (P ≤ 0.05) from those from the montane population, while F1 crosses were intermediate. High induction of heat shock proteins (Hsps) in the montane strain appeared to improve short-term survival during first exposure to high water temperatures, but high physiological costs of Hsp production may have led to lower long-term survival. In contrast, the desert strain had significantly lower heat shock response than the montane fish and F1 crosses, suggesting that these desert fish have evolved alternative mechanisms to deal with thermal stress that provide better balance of physiological costs. Genomewide tests of greater than 10 000 SNPs found multiple SNPs that were significantly associated with survival under thermal stress, including Hsp47 which consistently appeared as a strong candidate gene for adaption to desert climates. Candidate SNPs identified in this study are prime targets to screen more broadly across this species' range to predict the potential for adaptation under scenarios of climate change. These results demonstrate that aquatic species can evolve adaptive responses to thermal stress and provide insight for understanding how climate change may impact ectotherms.


Assuntos
Aclimatação/genética , Proteínas de Choque Térmico HSP47/genética , Resposta ao Choque Térmico/genética , Oncorhynchus mykiss/genética , Oncorhynchus mykiss/fisiologia , Aclimatação/fisiologia , Animais , Mudança Climática , Clima Desértico , Expressão Gênica , Estudo de Associação Genômica Ampla , Proteínas de Choque Térmico HSP47/biossíntese , Proteínas de Choque Térmico HSP47/metabolismo , Resposta ao Choque Térmico/fisiologia , Temperatura Alta , Hidrobiologia , Oncorhynchus mykiss/metabolismo , Polimorfismo de Nucleotídeo Único , Estresse Fisiológico
15.
Stud Health Technol Inform ; 305: 499-502, 2023 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-37387076

RESUMO

Participating in clerkships with general practitioners (GPs) is integral to studying medicine. The students gain deep and valuable insights into the everyday working practice of GPs. The central challenge is organizing these clerkships to distribute the students to the participating doctors' offices. This process becomes even more complex and time-consuming if students can state their preferences. To support faculty staff and involve students in the process, we developed an application to support the distribution process via an automated system and applied it to allocate over 700 students over the course of 2.5 years.


Assuntos
Clínicos Gerais , Medicina , Humanos , Docentes , Estudantes
16.
J Can Chiropr Assoc ; 67(1): 77-84, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37250463

RESUMO

Background: Distal bimelic amyotrophy (DBMA) also known as Hirayama disease, is a rare, self-limiting motor neuron disease manifesting as atrophy of C7-T1 innervated muscles. We present a case report describing the chiropractic management of neck and thoracic pain in a patient with known DBMA. Case presentation: A 30 year-old black male U.S. veteran with DBMA presented with myofascial pain of the neck, shoulder, and back. A trial of chiropractic care was undertaken involving spinal manipulation of the thoracic spine and cervicothoracic region, manual and instrument-assisted soft tissue mobilization, and home exercise prescription. The patient reported modest improvement in pain intensity and did not experience any adverse events. Summary: This case presents the first documentation of chiropractic services in musculoskeletal pain management of a patient with concurrent DBMA. At this time there is no guidance in the existing body of literature for the safety and effectiveness of manual therapy in this population.


Contexte: La myélopathie cervicale basse, également connue sous le nom de maladie d'Hirayama, est une maladie rare et spontanément résolutive du motoneurone qui se manifeste par une atrophie des muscles innervés C7-T1. Nous présentons un rapport de cas décrivant la prise en charge chiropratique de douleurs cervicales et thoraciques chez un patient atteint d'une maladie d'Hirayama connue. Présentation du cas: Un vétéran américain noir de 30 ans, atteint de myélopathie cervicale basse, s'est présenté avec des douleurs myofasciales au cou, aux épaules et au dos. Un essai de soins chiropratiques a été entrepris comprenant des manipulations vertébrales de la colonne thoracique et de la région cervicothoracique, des mobilisations manuelles et instrumentales des tissus mous, et la prescription d'exercices à domicile. Le patient a fait état d'une amélioration modeste de l'intensité de la douleur et n'a pas ressenti d'effets indésirables. Résumé: Ce cas présente la première documentation des services chiropratiques dans la gestion de la douleur musculo-squelettique d'un patient souffrant d'une myélopathie cervicale basse. À l'heure actuelle, il n'existe pas d'orientation dans la littérature existante sur la sécurité et l'efficacité de la thérapie manuelle dans cette population.

17.
Chiropr Man Therap ; 31(1): 10, 2023 03 09.
Artigo em Inglês | MEDLINE | ID: mdl-36895028

RESUMO

BACKGROUND: This review aimed to identify variables influencing clinicians' application of spinal manipulative therapy (SMT) for persistent spine pain after lumbar surgery (PSPS-2). We hypothesized markers of reduced clinical/surgical complexity would be associated with greater odds of applying SMT to the lumbar region, use of manual-thrust lumbar SMT, and SMT within 1-year post-surgery as primary outcomes; and chiropractors would have increased odds of using lumbar manual-thrust-SMT compared to other practitioners. METHODS: Per our published protocol, observational studies describing adults receiving SMT for PSPS-2 were included. PubMed, Web of Science, Scopus, OVID, PEDro, and Index to Chiropractic Literature were searched from inception to January 6, 2022. Individual patient data (IPD) were requested from contact authors when needed for selection criteria. Data extraction and a customized risk-of-bias rubric were completed in duplicate. Odds ratios (ORs) for primary outcomes were calculated using binary logistic regressions, with covariates including age, sex, symptom distribution, provider, motion segments, spinal implant, and surgery-to-SMT interval. RESULTS: 71 articles were included describing 103 patients (mean age 52 ± 15, 55% male). The most common surgeries were laminectomy (40%), fusion (34%), and discectomy (29%). Lumbar SMT was used in 85% of patients; and of these patients was non-manual-thrust in 59%, manual-thrust in 33%, and unclear in 8%. Clinicians were most often chiropractors (68%). SMT was used > 1-year post-surgery in 66% of cases. While no primary outcomes reached significance, non-reduced motion segments approached significance for predicting use of lumbar-manual-thrust SMT (OR 9.07 [0.97-84.64], P = 0.053). Chiropractors were significantly more likely to use lumbar-manual-thrust SMT (OR 32.26 [3.17-327.98], P = 0.003). A sensitivity analysis omitting high risk-of-bias cases (missing ≥ 25% IPD) revealed similar results. CONCLUSIONS: Clinicians using SMT for PSPS-2 most often apply non-manual-thrust SMT to the lumbar spine, while chiropractors are more likely to use lumbar-manual-thrust SMT relative to other providers. As non-manual-thrust SMT may be gentler, the proclivity towards this technique suggests providers are cautious when applying SMT after lumbar surgery. Unmeasured variables such as patient or clinician preferences, or limited sample size may have influenced our findings. Large observational studies and/or international surveys are needed for an improved understanding of SMT use for PSPS-2. Systematic review registration PROSPERO (CRD42021250039).


Assuntos
Dor Lombar , Manipulação da Coluna , Adulto , Humanos , Masculino , Pessoa de Meia-Idade , Idoso , Feminino , Manipulação da Coluna/métodos , Região Lombossacral , Dor Lombar/terapia , Vértebras Lombares/cirurgia
18.
J Chiropr Educ ; 37(2): 90-97, 2023 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-37246958

RESUMO

OBJECTIVE: The primary objective of this study was to assess, summarize, and compare the current integrated clinical learning opportunities offered for students who matriculated in US doctor of chiropractic programs (DCPs). METHODS: Two authors independently searched all accredited DCP handbooks and websites for clinical training opportunities within integrated settings. The 2 data sets were compared with any discrepancies resolved through discussion. We extracted data for preceptorships, clerkships, and/or rotations within the Department of Defense, Federally Qualified Health Centers, multi-/inter-/transdisciplinary clinics, private/public hospitals, and the Veterans Health Administration. Following data extraction, officials from each DCP were contacted with a request to verify the collected data. RESULTS: Of the 17 DCPs reviewed, all but 3 offered at least 1 integrated clinical experience, while 41 integrated clinical opportunities were the most offered by a single DCP. There was an average of 9.8 (median 4.0) opportunities per school and an average of 2.5 (median 2.0) clinical setting types. Over half (56%) of all integrated clinical opportunities were within the Veterans Health Administration, followed by multidisciplinary clinic sites (25%). CONCLUSION: This work presents preliminary descriptive information of the integrated clinical training opportunities available through DCPs.

19.
Sci Rep ; 13(1): 5192, 2023 03 30.
Artigo em Inglês | MEDLINE | ID: mdl-36997569

RESUMO

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by core impairments in social communication as well as restricted, repetitive patterns of behavior and/or interests. Individuals with ASD, which includes about 2% of the US population, have challenges with activities of daily living and suffer from comorbid medical and mental health concerns. There are no drugs indicated for the core impairments of ASD. As such, there is a significant need for the development of new medication strategies for individuals with ASD. This first-in-human placebo-controlled, double-blind, crossover study investigated the safety (primary objective) and efficacy of oral SB-121, a combination of L. reuteri, Sephadex® (dextran microparticles), and maltose administered once daily for 28 days in 15 autistic participants. SB-121 was safe and well tolerated. SB-121-associated directional improvements in adaptive behavior measured by Vineland-3 and social preference as measured with eye tracking were noted. These results provide support for further clinical evaluation of SB-121 as a treatment in autistic patients. To evaluate the safety and tolerability of multiple doses of SB-121 in subjects with autism spectrum disorder. Single-center, randomized, placebo-controlled, double-blind, crossover trial. 15 patients with autism spectrum disorder were randomized and analyzed. Daily dosing of SB-121 or placebo for 28 days, followed by approximately a 14 day washout, then 28 days of dosing with other treatment. Incidence and severity of adverse events, presence of Limosilactobacillus reuteri and Sephadex® in stool, and incidence of bacteremia with positive L. reuteri identification. Additional outcomes include changes from baseline on cognitive and behavior tests as well as biomarker levels. Adverse event rates were similar between SB-121 and placebo, with most reported as mild. There were no severe or serious adverse events. No participants had features of suspected bacteremia or notable changes in vital signs, safety laboratory, or ECG parameters from baseline. There was a statistically significant increase from baseline in the Vineland-3 Adaptive Behavior Composite score (p = 0.03) during SB-121 treatment. There was a trend for increased social/geometric viewing ratio following SB-121 treatment compared to placebo. SB-121 was safe and well tolerated. SB-121-associated directional improvements in adaptive behavior measured by Vineland-3 and social preference as measured with eye tracking were noted.Trial registration: clinicaltrials.gov Identifier: NCT04944901.


Assuntos
Transtorno do Espectro Autista , Probióticos , Humanos , Atividades Cotidianas , Transtorno do Espectro Autista/tratamento farmacológico , Transtorno do Espectro Autista/psicologia , Estudos Cross-Over , Método Duplo-Cego , Resultado do Tratamento
20.
J Sex Marital Ther ; 38(1): 79-107, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22268983

RESUMO

Research concerning therapeutic alliance and outcome is prevalent but relies heavily on data from individual treatment. In this article, the authors present data from cases in which an individual was seen and cases in which a couple was seen in order to investigate differences in therapeutic alliance and its trajectory depending on case type, therapist experience, and therapist sex. Participants included 96 couples and 52 individuals with 15 therapists from a large Midwestern training clinic for couple and family therapy. Data include the use of the Working Alliance Inventory-Shortened Version, and three-level models were estimated using hierarchical linear modeling. The results highlight differences in the trajectories of individual and couple clients' therapeutic alliance, including evidence for a curvilinear trend in work scores for individual clients but not couple clients. The results also highlight differences in the sources of variation for couple cases versus individual cases. There is clearly complexity in the building of alliance with clients in general, and even more so with couple clients.


Assuntos
Atitude do Pessoal de Saúde , Terapia de Casal/métodos , Relações Interpessoais , Modelos Psicológicos , Medicina de Precisão/métodos , Medicina de Precisão/psicologia , Relações Profissional-Paciente , Adulto , Comunicação , Feminino , Humanos , Masculino , Terapia Conjugal/métodos , Meio-Oeste dos Estados Unidos , Psicoterapia Breve/métodos , Inquéritos e Questionários , Adulto Jovem
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