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  • Ovid Technologies (Wolters Kluwer Health)  (77)
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  • 1
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2012
    In:  Sexually Transmitted Diseases Vol. 39, No. 11 ( 2012-11), p. 835-841
    In: Sexually Transmitted Diseases, Ovid Technologies (Wolters Kluwer Health), Vol. 39, No. 11 ( 2012-11), p. 835-841
    Type of Medium: Online Resource
    ISSN: 0148-5717
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2012
    detail.hit.zdb_id: 2055170-8
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  • 2
    In: Hepatology, Ovid Technologies (Wolters Kluwer Health), Vol. 56, No. 3 ( 2012-09), p. 1004-1014
    Type of Medium: Online Resource
    ISSN: 0270-9139
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2012
    detail.hit.zdb_id: 1472120-X
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  • 3
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2022
    In:  Journal of Bone and Joint Surgery Vol. 104, No. 13 ( 2022-7-6), p. 1179-1187
    In: Journal of Bone and Joint Surgery, Ovid Technologies (Wolters Kluwer Health), Vol. 104, No. 13 ( 2022-7-6), p. 1179-1187
    Abstract: Torsion of the lower extremities has been suggested to be a predisposing factor for patellar instability. However, no clear torsional factors have been clarified. This study aimed to elucidate the rotational geometry of the lower limb through segmental analysis in patients with patellar instability. Methods: Eighty-three patients with patellar instability were included. Computed tomography of the lower limb was acquired. Femoral and tibial torsion were measured in different segments. Femoral and tibial torsion in each segment was compared between the high- and normal-torsion groups to investigate which segment contributes the most. Results: All segments of femoral and tibial torsion except proximal femoral torsion showed significant differences between the high- and normal-torsion groups. The average proximal femoral torsion was 1.9° ± 7.1°, indicating that there was only slight torsion in the segment of the femoral neck. The angle between the femoral neck and the foot orientation in the normal-torsion, high-torsion tibial, and combined high-torsion femoral and tibial groups was 89.1° ± 12.0°, 81.3° ± 9.4°, and 98.2° ± 11.7°, respectively (p 〈 0.001), which suggested that the femoral neck remained nearly perpendicular to the foot orientation in the normal-torsion group. Shaft and distal femoral torsion contributed the most to total femoral torsion. For tibial torsion, from distal to proximal, internal torsion of both the proximal and distal segments contributed to the high torsion. There was no significant difference between distal femoral torsion and proximal tibial torsion, which suggested that, rather than the distal femur rotating internally on its own, the distal femur and the proximal tibia simultaneously rotated internally. Conclusions: In patients with patellar instability, torsional deformity occurs along the length of the tibia and in the shaft and distal segments of the femur. The comprehensive embodiment of lower-extremity malrotation is an internal rotation deformity of the knee. Clinical Relevance: This study elucidated the rotational geometry of the lower limb through a detailed segmental analysis in patients with patellar instability. It could serve as a theoretical basis for choosing a derotational osteotomy site and may be a reference for additional clinical research.
    Type of Medium: Online Resource
    ISSN: 0021-9355 , 1535-1386
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
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  • 4
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2015
    In:  Circulation Research Vol. 117, No. suppl_1 ( 2015-07-17)
    In: Circulation Research, Ovid Technologies (Wolters Kluwer Health), Vol. 117, No. suppl_1 ( 2015-07-17)
    Abstract: Doxorubicin (Dox)-induced cardiotoxicity, usually associated with increased oxidative stress, myofibrillar deterioration, and impaired cardiac contractile function, is a serious complication of antitumor therapy which may not be detected for many years. Growing evidence indicates that the regulation of cardiac microRNA (miRNA, miR) in response to exercise is essentially involved in the protective effect of exercise in the treatment of cardiovascular diseases. However, it is largely unknown whether and how exercise could prevent Dox-induced cardiotoxicity via regulating miRNA biology. In the current study, C57BL/6 mice were either subjected to a 3-week swimming program or remained sedentary. Mice were then treated with Dox (ip. 4 mg/kg/week for 4 weeks) to induce cardiotoxicity. Our data demonstrated that Dox resulted in marked reduction of cardiac ejection fraction (EF, %) and fractional shortening (FS, %) as measured by echocardiography. Interestingly, exercise significantly improved cardiac EF (%) and FS (%) in Dox-treated mice, indicating the protective effect of exercise in Dox-induced cardiotoxicity. Then, we performed microarray analysis (Affymetrix 3.0) showing that miR-27a-5p, miR-34b-3p, miR-185-3p, miR-203-3p, miR-669a-5p, miR-872-3p, and let-7i-3p were significantly reduced, while miR-2137 was increased in the hearts of exercised Dox-treated mice versus sedentary Dox-treated mice (FC(abs) 〉 1.5, p 〈 0.05). Using qRT-PCR, we further verified that miR-669a-5p was reduced by exercise training in Dox-treated mice. These data reveal that miR-669a-5p might be a potential miRNA mimicking the benefit of exercise in Dox-induced cardiotoxicity. Further study is needed to clarify the functional effect of miR-669a-5p and to identify its downstream target gene that contributes to the prevention and treatment of Dox-induced cardiotoxicity.
    Type of Medium: Online Resource
    ISSN: 0009-7330 , 1524-4571
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2015
    detail.hit.zdb_id: 1467838-X
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  • 5
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2022
    In:  Hepatology Communications Vol. 6, No. 5 ( 2022-05), p. 1123-1139
    In: Hepatology Communications, Ovid Technologies (Wolters Kluwer Health), Vol. 6, No. 5 ( 2022-05), p. 1123-1139
    Abstract: The oxysterol receptor liver X receptor (LXR) is a nuclear receptor best known for its function in the regulation of lipid and cholesterol metabolism. LXRs, both the α and β isoforms, have been suggested as potential therapeutic targets for several cancer types. However, there was a lack of report on whether and how LXRα plays a role in the development of hepatocellular carcinoma (HCC). In the current study, we found that systemic activation of LXRα in the VP‐LXRα knock‐in ( LXRαKI ) mice or hepatocyte‐specific activation of LXRα in the VP‐LXRα transgenic mice sensitized mice to liver tumorigenesis induced by the combined treatment of diethylnitrosamine (DEN) and 3,3',5,5'‐tetrachloro‐1,4‐bis (pyridyloxy) benzene (TCPOBOP). Mechanistically, the LXRα‐ responsive up‐regulation of interleukin‐6 (IL‐6)/signal transducer and activator of transcription 3 (STAT3) signaling pathway and the complement system, and down‐regulation of bile acid metabolism, may have contributed to increased tumorigenesis. Accumulations of secondary bile acids and oxysterols were found in both the serum and liver tissue of LXRα activated mice. We also observed an induction of monocytic myeloid–derived suppressor cells accompanied by down‐regulation of dendritic cells and cytotoxic T cells in DEN/TCPOBOP‐induced liver tumors, indicating that chronic activation of LXRα may have led to the activation of innate immune suppression. The HCC sensitizing effect of LXRα activation was also observed in the c‐MYC driven HCC model. Conclusion: Our results indicated that chronic activation of LXRα promotes HCC, at least in part, by promoting innate immune suppressor as a result of accumulation of oxysterols, as well as up‐regulation of the IL‐6/Janus kinase/STAT3 signaling and complement pathways.
    Type of Medium: Online Resource
    ISSN: 2471-254X , 2471-254X
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
    detail.hit.zdb_id: 2881134-3
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  • 6
    In: The Journal of ECT, Ovid Technologies (Wolters Kluwer Health), Vol. 34, No. 4 ( 2018-12), p. 227-232
    Abstract: Electroconvulsive therapy (ECT) has often been applied to augment antipsychotics for schizophrenia patients. However, the underpinning mechanism is still unclear. Previous studies of major depressive disorder reported an increase in γ-aminobutyric acid (GABA) after ECT. The present study investigated the effects of ECT on medial prefrontal GABA in schizophrenia using a proton magnetic resonance spectroscopy. Methods Inpatients fulfilling the diagnostic criteria for schizophrenia ( Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition ) were assigned to 2 groups, ECT group (n = 14) receiving ECT plus antipsychotic drugs (APD) and drug group (n = 17) only receiving antipsychotic drugs. Medial prefrontal GABA+/Cr concentrations of all patients were measured with magnetic resonance spectroscopy at baseline and after 4-week treatment. Sex- and age-matched healthy comparisons (n = 19) were scanned at baseline. Results γ-Aminobutyric acid level did not show a significant difference among 3 groups. However, when 2 patient groups were combined, their GABA level was significantly lower than that in healthy comparisons group. For schizophrenia patients, repeated measures analysis of variance revealed that both the group effect and group × time interaction were insignificant, but the time effect of baseline versus after treatment was significant. Exploratory post hoc paired t test found a significant increase of GABA only in ECT group, but not in drug group. No correlation was found between GABA change and clinical symptom improvement in either group. Conclusions γ-Aminobutyric acid level in the medial prefrontal lobe was reduced in schizophrenia patients. An increase in GABA concentration in the medial prefrontal cortex is more significantly associated with ECT plus antipsychotics than antipsychotics alone, possibly supporting the hypothesis of ECT augmentation for GABA mediated neural inhibition.
    Type of Medium: Online Resource
    ISSN: 1533-4112 , 1095-0680
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2018
    detail.hit.zdb_id: 2071131-1
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  • 7
    In: The Journal of ECT, Ovid Technologies (Wolters Kluwer Health), Vol. 37, No. 2 ( 2021-6), p. 140-146
    Abstract: Repetitive transcranial magnetic stimulation (rTMS) offers promise for the treatment of depression, yet its potential impact on suicidal ideation (SI), particularly in adolescents, has not been well studied. This study aimed to investigate the efficacy of add-on rTMS for reducing SI in a large clinical sample experiencing an acute phase of depression. Methods This study included 146 patients with a score of ≥14 on the 17-item Hamilton Rating Scale for Depression (HAMD). Among them, 97 had a HAMD-SI (3-item) score of 1 or greater and were pooled into the analysis. Symptoms of depression and SI were measured using the HAMD total score and HAMD-SI score. Comparisons of clinical improvement for both SI and rates of remission were made between adolescent (n = 29) and adult patients (n = 68), as well as between high-frequency (HF) rTMS on the left dorsolateral prefrontal cortex (DLPFC) (80 trains, 30 pulses per train, 12 s intertrain interval, 2400 pulses per session) and low-frequency (LF) rTMS on the right DLPFC protocol (2 trains, 700 pulses per train, 1 s intertrain-interval, 1400 pulses per session), power (intensity) level of 120% of motor threshold (MT), and 5 sessions per week for 2 weeks. Results Add-on rTMS treatment showed significant clinical improvement in SI, and was also well tolerated, with no adverse events reported. The SI improvements and remission rates were more significant in adolescents treated with the HF left DLPFC rTMS protocol, compared with adults treated with the LF right DLPFC rTMS protocol (remission rates: adolescent with LF right DLPFC, 50%; adolescent with HF left DLPFC, 94%; adult with LF right DLPFC, 65%; adult with HF left DLPFC, 57%). A positive association between improvement in the HAMD total score and HAMD-SI score was found in adults, but not in adolescents. Conclusions Add-on rTMS treatment for SI associated with depression is promising with respect to safety and feasibility. Our preliminary evidence supports an extension of the application of rTMS to adolescent patients with SI during the acute phase of depression, in addition to its use in adult treatment-resistant depression.
    Type of Medium: Online Resource
    ISSN: 1533-4112 , 1095-0680
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
    detail.hit.zdb_id: 2071131-1
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  • 8
    In: Infectious Diseases & Immunity, Ovid Technologies (Wolters Kluwer Health), Vol. 2, No. 2 ( 2022-01-13), p. 83-92
    Abstract: The coronavirus disease 2019 (COVID-19) is a highly infectious respiratory disease. There is no recommended antiviral treatment approved for COVID-19 in Sierra Leone, and supportive care and protection of vital organ function are performed for the patients. This study summarized the clinical characteristics, drug treatments, and risk factors for the severity and prognosis of COVID-19 in Sierra Leone to provide evidence for the treatment of COVID-19. Methods: Data of 180 adult COVID-19 patients from the 34th Military Hospital in Freetown Sierra Leone between March 31, 2020 and August 11, 2020 were retrospectively collected. Patients with severe and critically ill are classified in the severe group, while patients that presented asymptomatic, mild, and moderate disease were grouped in the non-severe group. The clinical and laboratory information was retrospectively collected to assess the risk factors and treatment strategies for severe COVID-19. Demographic information, travel history, clinical symptoms and signs, laboratory detection results, chest examination findings, therapeutics, and clinical outcomes were collected from each case file. Multivariate logistic analysis was adopted to identify the risk factors for deaths. Additionally, the clinical efficacy of dexamethasone treatment was investigated. Results: Seventy-six (42.22%) cases were confirmed with severe COVID-19, while 104 patients (57.78%) were divided into the non-severe group. Fever (56.67%, 102/180) and cough (50.00%, 90/180) were the common symptoms of COVID-19. The death rate was 18.89% (34/180), and severe pneumonia (44.12%, 15/34) and septic shock (23.53%, 8/34) represented the leading reasons for deaths. The older age population, a combination of hypertension and diabetes, the presence of pneumonia, and high levels of inflammatory markers were significantly associated with severity of COVID-19 development ( P   〈  0.05 for all). Altered level of consciousness [odds ratio (OR) = 56.574, 95% confidence interval (CI) 5.645–566.940, P  = 0.001], high levels of neutrophils (OR = 1.341, 95%CI 1.109–1.621, P  = 0.002) and C-reactive protein (CRP) (OR = 1.014, 95%CI 1.003–1.025, P  = 0.016) might be indicators for COVID-19 deaths. Dexamethasone treatment could reduce mortality [30.36% (17/56) vs . 50.00% (10/20)] among severe COVID-19 cases, but the results were not statistically significant ( P   〉  0.05). Conclusions: The development and prognosis of COVID-19 may be significantly correlated with consciousness status, and the levels of neutrophils and CRP.
    Type of Medium: Online Resource
    ISSN: 2693-8839
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
    detail.hit.zdb_id: 3123817-8
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  • 9
    In: Sexually Transmitted Diseases, Ovid Technologies (Wolters Kluwer Health), Vol. 38, No. 2 ( 2011-02), p. 89-95
    Type of Medium: Online Resource
    ISSN: 0148-5717
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2011
    detail.hit.zdb_id: 2055170-8
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  • 10
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2023
    In:  Journal of Neuro-Ophthalmology ( 2023-8-7)
    In: Journal of Neuro-Ophthalmology, Ovid Technologies (Wolters Kluwer Health), ( 2023-8-7)
    Type of Medium: Online Resource
    ISSN: 1070-8022
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
    detail.hit.zdb_id: 2062798-1
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