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2.
Ann Surg Oncol ; 31(6): 4061-4070, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38494565

RESUMO

BACKGROUND: The Evaluation of Groin Lymphadenectomy Extent for Melanoma (EAGLE FM) study sought to address the question of whether to perform inguinal (IL) or ilio-inguinal lymphadenectomy (I-IL) for patients with inguinal nodal metastatic melanoma who have no clinical or imaging evidence of pelvic disease. Primary outcome measure was disease-free survival at 5 years, and secondary endpoints included lymphoedema. METHODS: EAGLE FM was designed to recruit 634 patients but closed with 88 patients randomised because of slow recruitment and changes in melanoma management. Lymphoedema assessments occurred preoperatively and at 6, 12, 18, and 24 months postoperatively. Lymphoedema was defined as Inter-Limb Volume Difference (ILVD) > 10%, Lymphoedema Index (L-Dex®) > 10 or change of L-Dex® > 10 from baseline. RESULTS: Prevalence of leg lymphoedema between the two groups was similar but numerically higher for I-IL at all time points in the first 24 months of follow-up; highest at 6 months (45.9% IL [CI 29.9-62.0%], 54.1% I-IL [CI 38.0-70.1%]) and lowest at 18 months (18.8% IL [CI 5.2-32.3%], 41.4% I-IL [CI 23.5-59.3%]). Median ILVD at 24 months for those affected by lymphoedema was 14.5% (IQR 10.6-18.7%) and L-Dex® was 12.6 (IQR 9.0-17.2). There was not enough statistical evidence to support associations between lymphoedema and extent of surgery, radiotherapy, or wound infection. CONCLUSIONS: Despite a trend for patients who had I-IL to have greater lymphoedema prevalence than IL in the first 24 months after surgery, our study's small sample did not have the statistical evidence to support an overall difference between the surgical groups.


Assuntos
Canal Inguinal , Excisão de Linfonodo , Linfedema , Melanoma , Neoplasias Cutâneas , Humanos , Melanoma/cirurgia , Melanoma/patologia , Linfedema/etiologia , Excisão de Linfonodo/efeitos adversos , Feminino , Masculino , Estudos Prospectivos , Pessoa de Meia-Idade , Seguimentos , Neoplasias Cutâneas/cirurgia , Neoplasias Cutâneas/patologia , Canal Inguinal/cirurgia , Canal Inguinal/patologia , Prognóstico , Taxa de Sobrevida , Perna (Membro) , Idoso , Adulto , Complicações Pós-Operatórias/etiologia , Estadiamento de Neoplasias
3.
Molecules ; 29(4)2024 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-38398564

RESUMO

One new compound with an isoindolinone skeleton, along with erinacines A, C, and S, was isolated from the mycelia of Hericium erinaceus, an edible fungus with a long history of use in traditional Chinese medicine. Based on analysis of MS and NMR spectral data, the structure of the compound was identified as (2E,6E)-8-(2-(1-carboxy-3-methylbutyl)-4,6-dihydroxy-1-oxoisoindolin-5-yl)-2,6-dimethylocta-2,6-dienoic acid. In light of this discovery, we have given this compound the name erinacerin W. Using a co-culture in vitro LPS-activated BV2 microglia-induced SH-SY5Y neuroinflammation model, the results showed that erinacerin W demonstrated protection against the LPS-activated BV-2 cell-induced overexpression of IL-6, IL-1ß, and TNF-α on SH-SY5Y cells. This finding may provide potential therapeutic approaches for central nervous disorders.


Assuntos
Neuroblastoma , Fármacos Neuroprotetores , Humanos , Fármacos Neuroprotetores/farmacologia , Lipopolissacarídeos/farmacologia , Hericium
4.
Sports Biomech ; : 1-10, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-38180880

RESUMO

This study aimed to investigate the kinematics and kinetics differences in ground reaction force (GRF)-time profiles with uni- and bimodal curves (UNC and BIC) during the concentric phase of the drop jump (DJ). Twenty two male Physical Education college student who met UNC (N = 11) or BIC (N = 11) of the GRF-time profile of were recruited. Two force plates and eight infrared optical cameras were synchronised to collect the GRF and motion data during DJ from a 30-cm height. The Shapiro-Wilk test was used to assess the normality of data. The Wilcoxon test was used when data were not normally distributed. Otherwise, Independent t-tests were used to compare differences between the UNC and BIC groups for each dependent variable. The UNC group demonstrated shorter ground contact time, lower jump height, greater leg stiffness, greater peak power during the eccentric phase, less work during the eccentric and concentric phases, and greater hip and knee joint flexion and extension angle displacements (p < 0.05). No significant intergroup differences were found in reactive strength index (p > 0.05). The UNC and BIC of the GRF-time profiles can indicate whether athletes can practice DJ appropriately. UNC can be representative of a better DJ performance with an efficient stretch-shortening cycle function.

5.
Nat Commun ; 14(1): 7278, 2023 11 10.
Artigo em Inglês | MEDLINE | ID: mdl-37949869

RESUMO

In the mammalian visual system, the ventral lateral geniculate nucleus (vLGN) of the thalamus receives salient visual input from the retina and sends prominent GABAergic axons to the superior colliculus (SC). However, whether and how vLGN contributes to fundamental visual information processing remains largely unclear. Here, we report in mice that vLGN facilitates visually-guided approaching behavior mediated by the lateral SC and enhances the sensitivity of visual object detection. This can be attributed to the extremely broad spatial integration of vLGN neurons, as reflected in their much lower preferred spatial frequencies and broader spatial receptive fields than SC neurons. Through GABAergic thalamocollicular projections, vLGN specifically exerts prominent surround suppression of visuospatial processing in SC, leading to a fine tuning of SC preferences to higher spatial frequencies and smaller objects in a context-dependent manner. Thus, as an essential component of the central visual processing pathway, vLGN serves to refine and contextually modulate visuospatial processing in SC-mediated visuomotor behaviors via visually-driven long-range feedforward inhibition.


Assuntos
Corpos Geniculados , Neurônios , Camundongos , Animais , Corpos Geniculados/fisiologia , Neurônios/fisiologia , Tálamo , Vias Visuais/fisiologia , Colículos Superiores/fisiologia , Mamíferos
6.
Fitoterapia ; 171: 105695, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37797793

RESUMO

For centuries, food, herbal medicines, and natural products have been valuable resources for discovering novel antiviral drugs, uncovering new structure-activity relationships, and developing effective strategies to prevent/treat viral infections. One such resource is Phellinus linteus, a mushroom used in folk medicine in Taiwan, Japan, Korea, and China. In this rich historical context, the key metabolites of Phellinus linteus mycelia ethanolic extract (GKPL) impacting the entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at multiple stages have yet to be explored. Thus, this study systematically identifies and assesses the inhibitory effect of GKPL on the SARS-CoV-2 virus. Initially, the concentrations and contact times of GKPL against SARS-CoV-2 pseudovirus were assessed in HepG2 cells. Subsequently, utilizing the Ultra Performance Liquid Chromatography-Quadrupole Time-of-Flight Mass Spectrometry method, potential biomarkers in the fungal extract were discerned. Metabolomic analysis identified 18 compounds in GKPL, with hispidin and hypholomine B present in the highest amounts. These compounds were isolated using chromatographic techniques and further identified through 1D NMR spectroscopic and mass spectrometry analysis. Hispidin and hypholomine B were found to inhibit the infection of SARS-CoV-2 pseudovirus by reducing angiotensin-converting enzyme 2 gene expression in HepG2, thereby decreasing viral entry. Moreover, hispidin and hypholomine B effectively block the spike receptor-binding domain, while hypholomine B, for the first time, showed significant inhibition of 3CL protease. This suggests that GKPL, enriched with hispidin and hypholomine B, has the potential to be used as an active ingredient against SARS-CoV-2.


Assuntos
COVID-19 , Espectrometria de Massas em Tandem , Humanos , SARS-CoV-2 , Estrutura Molecular , Espectroscopia de Ressonância Magnética
7.
Front Aging Neurosci ; 15: 1213379, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37649717

RESUMO

Alzheimer's disease (AD) is a progressive neurodegenerative disorder primarily affecting cognitive functions. However, sensory deficits in AD start to draw attention due to their high prevalence and early onsets which suggest that they could potentially serve as diagnostic biomarkers and even contribute to the disease progression. This literature review examines the sensory deficits and cortical pathological changes observed in visual, auditory, olfactory, and somatosensory systems in AD patients, as well as in various AD animal models. Sensory deficits may emerge at the early stages of AD, or even precede the cognitive decline, which is accompanied by cortical pathological changes including amyloid-beta deposition, tauopathy, gliosis, and alterations in neuronal excitability, synaptic inputs, and functional plasticity. Notably, these changes are more pronounced in sensory association areas and superficial cortical layers, which may explain the relative preservation of basic sensory functions but early display of deficits of higher sensory functions. We propose that sensory impairment and the progression of AD may establish a cyclical relationship that mutually perpetuates each condition. This review highlights the significance of sensory deficits with or without cortical pathological changes in AD and emphasizes the need for further research to develop reliable early detection and intervention through sensory systems.

8.
Neuron ; 111(22): 3650-3667.e6, 2023 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-37652003

RESUMO

Safety assessment and threat evaluation are crucial for animals to live and survive in the wilderness. However, neural circuits underlying safety assessment and their transformation to mediate flexibility of fear-induced defensive behaviors remain largely unknown. Here, we report that distinct neuronal populations in mouse anterior cingulate cortex (ACC) encode safety status by selectively responding under different contexts of auditory threats, with one preferably activated when an animal staysing in a self-deemed safe zone and another specifically activated in more dangerous environmental settings that led to escape behavior. The safety-responding neurons preferentially target the zona incerta (ZI), which suppresses the superior colliculus (SC) via its GABAergic projection, while the danger-responding neurons preferentially target and excite SC. These distinct corticofugal pathways antagonistically modulate SC responses to threat, resulting in context-dependent expression of fear reactions. Thus, ACC serves as a critical node to encode safety/danger assessment and mediate behavioral flexibility through differential top-down circuits.


Assuntos
Giro do Cíngulo , Zona Incerta , Camundongos , Animais , Medo/fisiologia , Colículos Superiores/fisiologia
9.
J Cachexia Sarcopenia Muscle ; 14(5): 2226-2238, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37562939

RESUMO

BACKGROUND: Disuse atrophy is a frequent cause of muscle atrophy, which can occur in individuals of any age who have been inactive for a prolonged period or immobilization. Additionally, acute diseases such as COVID-19 can cause frequent sequelae and exacerbate muscle wasting, leading to additional fatigue symptoms. It is necessary to investigate potent functional nutrients for muscle reinforcement in both disuse atrophy and fatigue to ensure better physical performance. METHODS: The effects of Sanghuangporus sanghuang SS-MN4 mycelia were tested on two groups of 6-week-old male mice-one with disuse atrophy and the other with fatigue. The disuse atrophy group was divided into three sub-groups: a control group, a group that underwent hind limb casting for 7 days and then recovered for 7 days and a group that was administered with SS-MN4 orally for 14 days, underwent hind limb casting for 7 days and then recovered for 7 days. The fatigue group was divided into two sub-groups: a control group that received no SS-MN4 intervention and an experimental group that was administered with SS-MN4 orally for 39 days and tested for exhaustive swimming and running on Day 31 and Day 33, respectively. RNA sequencing (RNA-seq) and western blot analysis were conducted on C2C12 cell lines to identify the therapeutic effects of SS-MN4 treatment. RESULTS: In a disuse atrophy model induced by hind limb casting, supplementing with 250 mg/kg of SS-MN4 for 14 days led to 111.2% gastrocnemius muscle mass recovery and an 89.1% improvement in motor function on a treadmill (P < 0.05). In a fatigue animal model, equivalent SS-MN4 dosage improved swimming (178.7%) and running (162.4%) activities (P < 0.05) and reduced blood urea nitrogen levels by 18% (P < 0.05). SS-MN4 treatment also increased liver and muscle glycogen storage by 34.36% and 55.6%, respectively, suggesting a higher energy reserve for exercise. RNA-seq and western blot studies from the C2C12 myotube showed that SS-MN4 extract upregulates Myh4 and helps sustain myotube integrity against dexamethasone damage. CONCLUSIONS: Supplementation of SS-MN4 (250-mg/kg body weight) with hispidin as active compound revealed a potential usage as a muscle nutritional supplement enhancing muscle recovery, fast-twitch fibre regrowth and fatigue resistance.

10.
Nat Neurosci ; 26(9): 1529-1540, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37524978

RESUMO

Fluctuations in reproductive hormone levels are associated with mood disruptions in women, such as in postpartum and perimenopausal depression. However, the neural circuit mechanisms remain unclear. Here we report that medial preoptic area (MPOA) GABAergic neurons mediate multifaceted depressive-like behaviors in female mice after ovarian hormone withdrawal (HW), which can be attributed to downregulation of activity in Esr1 (estrogen receptor-1)-expressing GABAergic neurons. Enhancing activity of these neurons ameliorates depressive-like behaviors in HW-treated mice, whereas reducing their activity results in expression of these behaviors. Two separate subpopulations mediate different symptoms: a subpopulation projecting to the ventral tegmental area (VTA) mediates anhedonia and another projecting to the periaqueductal gray mediates immobility. These projections enhance activity of dopaminergic neurons in the VTA and serotonergic neurons in the dorsal raphe, respectively, with increased release of dopamine and serotonin, possibly through disinhibition mechanisms. Thus, the MPOA is a hub that mediates depressive-like behaviors resulting from transitions in reproductive hormone levels.


Assuntos
Área Pré-Óptica , Área Tegmentar Ventral , Camundongos , Feminino , Animais , Área Pré-Óptica/fisiologia , Área Tegmentar Ventral/fisiologia , Neurônios Dopaminérgicos/fisiologia , Neurônios GABAérgicos/fisiologia
11.
Biomed Pharmacother ; 164: 114880, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37224751

RESUMO

3,4-methylenedioxymethamphetamine (MDMA) is a popular recreational drug, however over 200 studies demonstrate that acute (e.g. hyperthermia, rhabdomyolysis) and chronic (e.g. neurotoxicity) toxicity effects of MDMA were observed in different animals. Methimazole (MMI), an inhibitor of thyroid hormone synthesis, was found to significantly reduce the HSP72 expression of heat stress induced in fibroblasts. Hence, we attempted to understand the effects of MMI on MDMA induced changes in vivo. Male SD rats were randomly divided into four groups as follows:(a) water-saline (b) water-MDMA (c) MMI-saline and (d) MMI-MDMA group. In the temperature analysis test, MMI was found to alleviate MDMA-induced hyperthermia and increase the heat loss index (HLI), revealing its peripheral vasodilation effect. PET experiment suggested that MDMA induced elevated glucose uptake by skeletal muscles, which was resolved by MMI pretreatment. IHC staining (serotonin transporter, SERT) showed the evidence of neurotoxicity caused by MDMA (serotonin fiber loss), which was alleviated by MMI. Furthermore, the animal behaviour test (forced swimming test, FST) showed higher swimming time but lower immobility time in MMI-MDMA and MMI-saline groups. Taken together, treatment of MMI shows benefits such as lowered body temperature, alleviation of neurotoxicity and excited behaviour. However, further investigations should be conducted in the future to provide in-depth evidence for its clinical use.


Assuntos
Hipertermia Induzida , N-Metil-3,4-Metilenodioxianfetamina , Síndromes Neurotóxicas , Ratos , Masculino , Animais , N-Metil-3,4-Metilenodioxianfetamina/toxicidade , Metimazol/toxicidade , Ratos Sprague-Dawley , Temperatura Corporal , Síndromes Neurotóxicas/tratamento farmacológico , Síndromes Neurotóxicas/etiologia , Hipertermia Induzida/efeitos adversos
12.
RSC Adv ; 13(16): 10636-10641, 2023 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-37025664

RESUMO

Covalent inhibitors of the papain-like protease (PLpro) from SARS-CoV-2 have great potential as antivirals, but their non-specific reactivity with thiols has limited their development. In this report, we performed an 8000 molecule electrophile screen against PLpro and identified an α-chloro amide fragment, termed compound 1, which inhibited SARS-CoV-2 replication in cells, and also had low non-specific reactivity with thiols. Compound 1 covalently reacts with the active site cysteine of PLpro, and had an IC50 of 18 µM for PLpro inhibition. Compound 1 also had low non-specific reactivity with thiols and reacted with glutathione 1-2 orders of magnitude slower than other commonly used electrophilic warheads. Finally, compound 1 had low toxicity in cells and mice and has a molecular weight of only 247 daltons and consequently has great potential for further optimization. Collectively, these results demonstrate that compound 1 is a promising lead fragment for future PLpro drug discovery campaigns.

13.
Patient Prefer Adherence ; 17: 769-780, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36974078

RESUMO

Background: Adherence therapy (AT) is an intervention for improving medication adherence of people with schizophrenia spectrum disorders, but no systematic reviews have yet summarized the effectiveness and minimum treatment duration of AT. We here aimed to systematically examine the effectiveness of AT in improving outcomes versus treatment as usual (TAU) and its minimum effective duration for people diagnosed with schizophrenia spectrum disorders. Patients and Methods: Eligible randomized controlled trials were identified from four databases (Web of Science, PubMed, CINAHL and Cochrane Library) for the period 1 January 2006 to 1 January 2023. Of 1087 retrieved candidate studies, five studies with a total of 726 participants met the inclusion criteria. The search terms consisted of adherence therapy, compliance therapy, schizophrenia, schizoaffective disorder, schizophrenic disorder, medication adherence, and medication compliance (combined with OR and AND). Two investigators independently selected studies, extracted data, and conducted bias risk assessments. Random-effects models were used to analyze the pooled data. Results: Meta-analysis of the five selected studies showed that AT had a significantly greater positive effects than TAU on psychiatric symptoms, but no significant effects on adherence behaviors and attitudes. Conclusion: The AT had limited effects in terms of improving the attitudes and behaviors of people with schizophrenia spectrum disorders with respect to medication adherence, but did improve patients' psychiatric symptoms. The therapy should be performed by trained staff for maximum benefit, and the recommended duration of the intervention is 12 hours.

14.
Neuron ; 111(9): 1486-1503.e7, 2023 05 03.
Artigo em Inglês | MEDLINE | ID: mdl-36893756

RESUMO

Extracting the valence of environmental cues is critical for animals' survival. How valence in sensory signals is encoded and transformed to produce distinct behavioral responses remains not well understood. Here, we report that the mouse pontine central gray (PCG) contributes to encoding both negative and positive valences. PCG glutamatergic neurons were activated selectively by aversive, but not reward, stimuli, whereas its GABAergic neurons were preferentially activated by reward signals. The optogenetic activation of these two populations resulted in avoidance and preference behavior, respectively, and was sufficient to induce conditioned place aversion/preference. Suppression of them reduced sensory-induced aversive and appetitive behaviors, respectively. These two functionally opponent populations, receiving a broad range of inputs from overlapping yet distinct sources, broadcast valence-specific information to a distributed brain network with distinguishable downstream effectors. Thus, PCG serves as a critical hub to process positive and negative valences of incoming sensory signals and drive valence-specific behaviors with distinct circuits.


Assuntos
Encéfalo , Neurônios GABAérgicos , Camundongos , Animais , Substância Cinzenta Periaquedutal , Afeto , Sinais (Psicologia)
15.
Int J Ment Health Nurs ; 32(4): 1008-1024, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36788653

RESUMO

Medication adherence and recovery rates are <50% among persons with schizophrenia; therefore, this health concern needs attention. Empowerment is a vital element for behavioural change, but previous studies have presented different results and lack specific connotations about empowerment. Therefore, this study systematically reviewed and meta-analysed the effects of empowerment-based illness management on the medication adherence and recovery of persons with schizophrenia. The databases searched included the PROSPERO registration network, Cochrane Library, PubMed, Embase, CINAHL, PsycAricle, and Airiti Library. The research steps were based on PRISMA. RoB 2.0 was used for article quality evaluation, the effect size was calculated using RevMan software, and the random-effect model and standardized mean differences (SMD) were established. Eight randomized controlled trials (RCTs) involving 859 participants were used to investigate the effect of empowerment on medication adherence. The trials involved the use of effective strategies as inducing medication motivation, promoting self-medication management, and providing support resources. A moderate effect was observed (SMD = 0.58, 95% CI 0.18-0.99). Ten RCTs involving 1473 participants were used to investigate the effect of empowerment on recovery. These trials involved the use of such effective strategies as using self-strength, connecting external forces, understanding personal needs, and overcoming self-stigma. A moderate effect was observed (SMD = 0.55, 95% CI 0.10-0.99). Empowerment in illness management can effectively promote the medication adherence and recovery of persons with schizophrenia. In the future, nurses can use self-strength care to promote medication motivation and connect internal and external forces to assist a person's medication adherence and recovery.


Assuntos
Adesão à Medicação , Esquizofrenia , Humanos , Motivação , Esquizofrenia/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como Assunto
16.
Eur Arch Otorhinolaryngol ; 280(2): 695-702, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35790554

RESUMO

BACKGROUND: It is plausible that immunopathological processes associated with psoriasis might contribute to the occurrence of olfactory or taste dysfunction. However, the actual association was still unknown. PURPOSE: To determine the relationship between olfactory or taste dysfunction and psoriasis. METHODS: Two cross-sectional studies were performed by using National Health and Nutrition Examination Survey (NHANES) data. Participants with psoriasis were defined as cases and those without psoriasis were identified as controls. Taste and smell self-reported questionnaires were used to define smell/taste alterations and identification tests were used to assure the smell/taste dysfunctions. Logistic regression models with inverse probability treatment weighting (IPTW) strategies were conducted to investigated the relationship between psoriasis and olfactory or taste dysfunction. RESULTS: Self-reported questionnaires indicated that psoriasis patients were more likely to have perceived taste alteration (IPTW-aOR = 1.43) and smell alteration (IPTW-aOR = 1.22). Identification tests revealed that psoriasis was associated with taste dysfunction (IPTW-aOR = 1.28) and olfactory dysfunction (IPTW-aOR = 1.22). Relevant findings showed that psoriasis may be significantly associated with taste or olfactory dysfunction regardless of the questionnaire data or identification examination data used. CONCLUSION: Olfactory and taste dysfunction could be considered comorbidities in patients with psoriasis based on our observational study. Therefore, physicians should be cautious of olfaction and taste alterations among patients with psoriasis.


Assuntos
Transtornos do Olfato , Psoríase , Humanos , Estados Unidos/epidemiologia , Olfato , Inquéritos Nutricionais , Estudos Transversais , Distúrbios do Paladar/epidemiologia , Distúrbios do Paladar/etiologia , Transtornos do Olfato/epidemiologia , Transtornos do Olfato/etiologia , Psoríase/complicações , Psoríase/epidemiologia , Disgeusia , Paladar
17.
Anaesthesia ; 78(3): 303-314, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36385220

RESUMO

Tranexamic acid is an effective treatment to reduce blood loss. We performed a retrospective observational study to evaluate safety in unilateral total knee arthroplasty. We utilised Taiwan's national health insurance database to identify relevant patients and to retrieve information on peri-operative blood transfusions and tranexamic acid administration within 60 days of follow-up. We examined changes in the rate of transfusions and adverse events with respect to tranexamic acid administration using logistic regression. We observed a total of 226,719 knee arthroplasty cases during 2010-2019. Transfusion and tranexamic acid administration rates were 38.9% (88,258) and 42.9% (97,237), respectively. Tranexamic acid was associated with a 50% decrease in blood transfusions (RR: 0.50, 95%CI: 0.48-0.51). After propensity-score matching, tranexamic acid was not associated with pulmonary embolism; deep vein thromboembolism; artery vein thromboembolism; acute myocardial infarction; ischaemic stroke; or in-hospital mortality, but was significantly associated with acute kidney injury. Patients with existing chronic kidney disease suffered a high absolute risk of kidney injury irrespective of tranexamic acid administration (832 per 10,000, 95%CI 797-869). Tranexamic acid was also associated with surgical site infection. There was strong interaction between blood transfusion; tranexamic aid administration; and development of surgical site infection. In conclusion, tranexamic acid use was associated with decreased blood transfusion and was not associated with thromboembolic events. However, careful consideration is required before use in patients with pre-existing renal disease. Further, our observed interaction between patients given tranexamic acid who subsequently require transfusion requires careful consideration with respect to enhanced prophylaxis against surgical site infection.


Assuntos
Antifibrinolíticos , Artroplastia do Joelho , Isquemia Encefálica , Acidente Vascular Cerebral , Tromboembolia , Ácido Tranexâmico , Humanos , Ácido Tranexâmico/efeitos adversos , Antifibrinolíticos/efeitos adversos , Artroplastia do Joelho/efeitos adversos , Artroplastia do Joelho/métodos , Infecção da Ferida Cirúrgica , Taiwan/epidemiologia , Isquemia Encefálica/tratamento farmacológico , Perda Sanguínea Cirúrgica/prevenção & controle , Acidente Vascular Cerebral/etiologia , Tromboembolia/etiologia , Administração Intravenosa
18.
Nanomaterials (Basel) ; 12(21)2022 Oct 22.
Artigo em Inglês | MEDLINE | ID: mdl-36364491

RESUMO

Metal and metal oxide nanoparticles, including copper nanoparticles (CuNPs), display antimicrobial activities and are regarded as promising microorganism inhibitors. Here, we explored the antimicrobial activity of CuNPs in Escherichia coli (E. coli) using two particle sizes (20 and 60 nm) and five concentrations (1, 5, 10, 50 and 100 µg/mL). The result showed a concentration-dependent trend of bactericidal activities for both size groups, with 20 nm particles more effective than 60 nm particles at low concentrations. The membrane disruption caused by CuNPs was confirmed by electron microscopy, PI staining and protein leaking analysis. However, the results of reactive oxygen species generation and genomic DNA damage revealed that the size and concentration of CuNPs were factors affecting the induction of multiple bactericidal mechanisms simultaneously on different scales. Further results of annexin V-PI staining supported this hypothesis by showing the shifting composition of the early-, late- and non-apoptotic dead cells across the CuNP groups. Many CuNP treatment groups were rescued when four mammalian modulators-wortmannin, necrosulfonamide, Z-VAD-FMK, and SBI-0206965-were applied separately. The results suggest the possible existence of bacterial programmed cell death pathways in E. coli which could be triggered by CuNP treatments.

19.
Ter Arkh ; 94(2): 172-179, 2022 Feb 15.
Artigo em Russo | MEDLINE | ID: mdl-36286740

RESUMO

BACKGROUND: Inflammatory bowel diseases (IBD) are characterized by chronic immune inflammation of the mucous membrane and/or the thickness of the intestinal wall, and are also accompanied by disorders of the blood clotting system and the development of a hypercoagulation state. AIM: To identify the frequency of thromboembolic complications (TEC) in IBD patients and to determine the influence of acquired and inherited hypercoagulation factors that contribute to the development of TEС. MATERIALS AND METHODS: The clinical status of 1,238 IBD patients who were treated in 2019 was evaluated. Of these, 748 patients with ulcerative colitis (UC) and 490 patients with Crohn's disease (CD). Among UC patients, there were 369 (49.3%) men and 379 (50.7%) women. In 10.1% of patients with UC, there were clinically significant feasibility studies. There were 227 (46.3%) men and 263 (53.7%) women among patients with CD; 7.3% of patients with CD had clinically significant feasibility studies. RESULTS: In general 112 (9.0%) of 1,238 IBD patients had clinically significant feasibility studies. Among patients with UC (n=748), 76 (10.2%) showed clinically significant feasibility studies. Among patients with CD (n=490), 36 (7.3%) had a feasibility study. Of 112 IBD patients with clinically significant TEC, 45 (40.2%) had genetic polymorphisms that increase affinity for fibrinogen, increase platelet aggregation, and contribute to a decrease in the activity of folate cycle enzymes, including methylenetetrahydrofolate reductase, which may be manifested by a moderate increase in homocysteine levels. Of the 45 IBD patients with clinically significant TEC due to inherited factors, 30 (66.6%) patients had UC, 15 (33.7%) patients had CD (hazard ratio 1.038, 95% confidence interval 0.7461.444; 2=0.049; p=0.83921); 67 (59.8%) patients with IBD who had clinically significant TEC did not have genetic polymorphisms leading to hypercoagulation. CONCLUSION: Based on the analysis, we can conclude that such risk factors for the development of TEC as the status of a smoker, long bed rest, taking hormonal contraceptives, varicose veins of the lower extremities, high activity of the disease, glucocorticoids therapy, the extent of intestinal damage in patients with IBD, genetic factors, should be taken into account by gastroenterologists in the treatment of patients with UC and CD. The hereditary factor of hypercoagulation equally affects the development of TEC, both in patients with UC and CD.


Assuntos
Colite Ulcerativa , Doença de Crohn , Doenças Inflamatórias Intestinais , Masculino , Humanos , Feminino , Metilenotetra-Hidrofolato Redutase (NADPH2) , Colite Ulcerativa/complicações , Colite Ulcerativa/epidemiologia , Doença de Crohn/complicações , Doença de Crohn/epidemiologia , Doenças Inflamatórias Intestinais/complicações , Doenças Inflamatórias Intestinais/epidemiologia , Fatores de Risco , Fibrinogênio , Ácido Fólico , Anticoncepcionais , Homocisteína
20.
Foods ; 11(10)2022 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-35626955

RESUMO

Morchella esculenta (ME), or "true" morel mushrooms, are one of the most expensive mushrooms. M. esculenta contain all the important nutrients including carbohydrates, proteins, polyunsaturated fatty acids, and several bioactive compounds such as polysaccharides, organic acids, polyphenolic compounds, and tocopherols, which are promising for antioxidant, immunomodulation, anti-cancer, and anti-inflammatory applications. However, the M. esculenta fruiting body is difficult to collect in nature and the quality is not always reliable. For this reason, the cultivation of its mycelia represents a useful alternative for large-scale production. However, for M. esculenta mycelia to be used as an innovative food ingredient, it is very important to prove it is safe for human consumption while providing high-quality nutrients. Hence, for the first time in this study, the nutritional composition, as well as 90 days of oral toxicity of fermented ME mycelia in Sprague Dawley rats, is examined. Results showed that the ME mycelia contained 4.20 ± 0.49% moisture, 0.32 ± 0.07% total ash, 17.17 ± 0.07% crude lipid, 39.35 ± 0.35% crude protein, 38.96 ± 4.60% carbohydrates, and 467.77 ± 0.21 kcal/100 g energy, which provides similar proportions of macronutrients as the U.S. Dietary Reference Intakes recommend. Moreover, forty male and female Sprague Dawley rats administrating ME mycelia at oral doses of 0, 1000, 2000, and 3000 mg/kg for 90 days showed no significant changes in mortality, clinical signs, body weight, ophthalmology, and urinalysis. Although there were alterations in hematological and biochemical parameters, organ weights, necropsy findings, and histological markers, they were not considered to be toxicologically significant. Hence, the results suggest that the no-observed-adverse-effects level (NOAEL) of ME mycelia was greater than 3000 mg/kg/day and can therefore be used safely as a novel food at the NOAEL.

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