1.Inflammation induced by degenerative lumbar scoliosis
Chinese Journal of Tissue Engineering Research 2016;20(7):1031-1036
BACKGROUND:Degenerative lumbar scoliosis patients wil appear to have abnormal changes in various cytokines in the serum of the body, which is closely related to patient’s pathogenesis.
OBJECTIVE: To monitor the changes in the serum levels of tumor necrosis factor-α, interleukin-6 and interleukin-1β during the onset of degenerative lumbar scoliosis.
METHODS: Sixty-six patients with degenerative lumbar scoliosis were enrolled as observation group, and according to Schwab evaluation system, there were 16 cases of type I, 32 of type II, and 18 of type III. Additionally, 60 healthy persons undergoing homochronous physical examination were extracted as control group. Blood samples were taken at preoperative 1, 2, 3 weeks and at postoperative 1, 2, 3, 4, 5, 6 weeks to determine serum levels of tumor necrosis factor-α, interleukin-6 and interleukin-1β as well as to observe the relevant changes.
RESULTS AND CONCLUSION:In the observation group, the levels of tumor necrosis factor-α, interleukin-6 and interleukin-1β were increased gradualy at 1-3 weeks before treatment, and then showed a decrease trend at 6 weeks after treatment. Compared with the control group, in the observation group, the levels of tumor necrosis factor-α were significantly higher at 1-4 weeks after admission (P < 0.05); the levels of interleukin-6 and interleukin-1β were significantly higher at 1-5 weeks after admission (P < 0.05). These findings indicate that the levels of tumor necrosis factor-α, interleukin-6 and interleukin-1 reached the peak at 1 week before treatment, and then gradualy decreased. Changes in the levels of tumor necrosis factor-α, interleukin-6 and interleukin-1β have an important role to assess disease development, which can be used to determine the severity of inflammation based on which we can select the appropriate treatment.
2.Yishen Yanggan Mingmu formula combined with anti-vascular endothelial growth factor drugs for the treatment of wet age-related macular degeneration
Jian GAO ; Meng LI ; Yan-Yan WANG ; Yan-Hong LIAO ; Yan GONG
International Eye Science 2023;23(8):1362-1366
AIM: To observe the clinical efficacy of Yishen Yanggan Mingmu formula combined with anti-vascular endothelial growth factor(VEGF)in the treatment of wet age-related macular degeneration(wARMD).METHODS: A total of 58 patients(58 eyes)with wARMD who were treated in Ningbo Eye Hospital from September 2020 to November 2022 were collected. They were divided into two groups according to randomized digital table: 29 patients(29 eyes)for the combination group and the other 29 patients(29 eyes)for the injection group. The injection group was only given intravitreal injection of conbercept; the combination group was orally administrated with Yishen Yanggan Mingmu formula combined with intravitreal injection of conbercept. The best corrected visual acuity(BCVA), central macular thickness(CMT)and the improvement of traditional Chinese medicine(TCM)syndromes after 3mo of treatment were observed and the clinical efficacy was evaluated.RESULTS: After 3mo of treatment, the total improved effective rate of the combination group(76%)was higher than the rate of the injection group(66%). After the treatment, the BCVA of the two groups was both higher than that before treatment(P<0.05), the CMT in both groups was lower than that before the treatment(P<0.05), and the improvement of CMT of the combination group was better than the injection group(-155.93±143.79μm vs. -95.36±56.81μm, P<0.05). After 3mo of treatment, each kinds of TCM syndrome in the combination group were significantly improved compared with those syndromes before the treatment(P<0.001). In the injection group, only blurred vision was improved(P<0.05). After the treatment, the scores of dizziness and insomnia, soreness and weakness of waist and knees, paleness and cold limbs, dry eyes and fatigue in the combination group were significantly lower than the injection group(P<0.001).CONCLUSIONS: The Yishen Yanggan Mingmu formula combined with intravitreal anti-VEGF drug injection is effective in the treatment of wARMD.
4.Changes of binocular surface indexes after unilateral endoscopic dacryocystorhinostomy
Xiaolin ZHANG ; Meng LI ; Keke ZHANG ; Yan GONG
International Eye Science 2024;24(3):479-483
AIM: To investigate the effect of unilateral endoscopic dacryocystorhinostomy on binocular surface indexes.METHODS: Totally 45 cases with monocular primary acquired nasolacrimal duct obstruction(PANDO)who successfully underwent endoscopic dacryocystorhinostomy between 1 December 2022 and 31 July 2023 were enrolled in the study. Ocular surface indexes, including the non-invasive tear break-up time(NIBUT), Sjögren's International Collaborative Clinical Alliance ocular staining score(SICCA OSS), Korb score of lid wiper and Schirmer test scores, were collected preoperatively and at 0.5, 1 and 3 mo post-operatively. Subsequently, various indexes were compared at each time point between the operated and healthy eyes pre- and post-operatively.RESULTS: There was no significant differences between operated and healthy eyes in NIBUT, SICCA OSS, Korb scores and Schirmer test(all P>0.05). Furthermore, the Korb scores of operated eye at 0.5, 1 and 3 mo post-operatively were significantly lower than the preoperative value(P=0.034, 0.044, 0.027). Moreover, the Schirmer test score of the operated eye at 1 mo post-operatively was significantly lower than the preoperative value(P=0.0461).CONCLUSION:After a successful endoscopic dacryocystorhinostomy, tear drainage is restored, however, ocular surface damage worsens. These changes typically peak at 1 mo post-operatively before gradually improving.
5. Options for irreparable rotator cuff tears
Xianwu CHEN ; Ruqing YE ; Liang WANG ; Meng WANG
Journal of Chinese Physician 2019;21(10):1584-1588
Irreparable rotator cuff tear can result in pain and should disfunction, and the management of patient with it remains a challenge. A variety of treatment options have been proposed, such as debridement, tuberplasty, partial rotator cuff repair, patch augmented rotator cuff repair, tendon transfers, superior capsule reconstruction, suprascapular nerve ablation or kill, inpace and reverse shoulder arthroplasty. These procedures are still widely debated, The aim of this review is to summarise procedures and the results, the operative essence is to restore the stable rotation center of glenohumeral joint, the choice is dictated by our special need.
6.Diffusion-Weighted MRI for the Initial Viability Evaluation of Parasites in Hepatic Alveolar Echinococcosis: Comparison with Positron Emission Tomography
Jianjun ZHENG ; Jing WANG ; Jianqing ZHAO ; Xianyun MENG
Korean Journal of Radiology 2018;19(1):40-46
OBJECTIVE: More than 70% of hepatic alveolar echinococcosis (HAE) are inoperable. Thus, long-term, or even life-long, pharmacological treatment with benzimidazoles is necessary. For effective treatment, it is of great importance to employ imaging techniques to detect and monitor the non-resectable parasitic viability. Therefore, this study aimed to evaluate diffusion-weighted imaging (DWI) in assessing the viability of HAE in comparison to 18-fluoro-deoxyglucose (18F-FDG) positron emission tomography, combined with computed tomography (PET/CT). MATERIALS AND METHODS: Positron emission tomography, computed tomography and DWI (b-values: 0, 800 s/mm2) were retrospectively analysed in eight patients with clinically-verified HAE to, generate the apparent diffusion coefficient (ADC) map. The activity of HAE lesions in both techniques were determined independently by two radiologists according to the following standard: (+), marked focally or perilesionally increased FDG uptake/high signal intensity; (−), a hepatic defect without FDG uptake/no high signal intensity. Every lesion's maximum standardized uptake value (SUV(max)) on the PET/CT images and mean ADC values on the parametric ADC maps were measured respectively. Results of PET/CT and DWI were compared on a per-lesion-basis. Pearson's correlation coefficient was assessed for statistical analysis. RESULTS: A total of 14 HAE lesions were detected. Eight lesions (diameter 3–15 cm) showed perilesional hyper-signal intensity on DWI. This was visualised on PET/CT as increased FDG uptake. They mainly existed in the lesion's border with normal liver parenchyma. Five lesions (diameter < 2 cm) were detected as nodular hyperintensity on DWI and a ‘hot spot’ on PET/CT in the same distribution. One patient, who had received oral drug therapy for three years showed significantly decreased perilesional hyperintensity on the DWI and a hepatic defect without any FDG uptake on PET/CT. Pearson's correlation coefficient indicated a significant inverse correlation of the ADC and the SUV(max) (r = −0.67, p < 0.001). CONCLUSION: Diffusion-weighted imaging is capable of offering information on visually detecting the HAE lesions' viability and may be useful for routine application in the initial diagnosis of HAE.
Benzimidazoles
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Diagnosis
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Diffusion
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Drug Therapy
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Echinococcosis
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Echinococcosis, Hepatic
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Electrons
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Humans
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Liver
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Magnetic Resonance Imaging
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Parasites
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Positron-Emission Tomography and Computed Tomography
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Positron-Emission Tomography
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Retrospective Studies
7.Construction and evaluation of charge-reversal nanocarrier loaded with hematoporphyrin monomethyl ether
Ai-ren XU ; Jian-hui RONG ; Meng-jia CHEN ; Zheng-hong FENG ; Wei-cheng MA ; Song SHEN ; Yi JIN
Acta Pharmaceutica Sinica 2017;52(10):1605-1610
Charge-reversal nanocarrier was constructed to enhance lysosomal escape and improve an-titumor effect. We synthesized the cholesterol-polyethyleneimine-hexahydrophthalic anhydride (Chol-PEI-HHPA) polymer and characterized by 1H NMR. The charge-reversal liposomes (Lipo-HHPA) were synthesized and the hematoporphyrin monomethyl ether (HMME) was loaded. pH-triggered charge conversion was determined at different pH values. The lysosomal escape and cytotoxicity of the Lipo-HHPA were evaluated in MCF-7 cells. The Lipo-HHPA was uniform with an average particle size of 102 nm. Upon the irradiation of ultrasound, burst release of HMME could be observed. The zeta potential of Lipo-HHPA changed sharply from negative (-23.5 mV) to positive (+21.2 mV) over the pH range of 7.4-4.5. In the cellular uptake experiment, the lysosomal escape of Lipo-HHPA was observed. HMME loaded Lipo-HHPA displayed obviously enhanced cytotoxicity towards MCF-7 cells. These results indicate that the charge-reversal liposomes hold a great potential in improving the cytotoxicity and antitumor effect.
8.Research Progress of Post-Transplant Cyclophosphamide Combined with Antithymocyte Globulin in Preventing GVHD after Hematopoietic Stem Cell Transplantation --Review.
Journal of Experimental Hematology 2023;31(6):1899-1904
Graft-versus-host disease (GVHD) is one of the major complications after allogeneic hematopoietic stem cell transplantation (allo-HSCT), which seriously affects the prognosis of patients. At present, a new regimen of post-transplantation cyclophosphamide (PTCy) combined with antithymocyte globulin (ATG) has been used to prevent GVHD, indicating that PTCy combined with ATG may have a good effect on the prevention of GVHD in different types of transplantation. However, the mechanism of this regimen, its effect on immune reconstitution and viral reactivation still needs to be further studied. Therefore, this article briefly reviews the research progress of PTCy combined with ATG in preventing GVHD after HSCT.
Humans
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Antilymphocyte Serum
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Cyclophosphamide
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Hematopoietic Stem Cell Transplantation/adverse effects*
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Graft vs Host Disease/prevention & control*
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Transplantation, Homologous
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Retrospective Studies
9.Acute Inflammatory Pain Induces Sex-different Brain Alpha Activity in Anesthetized Rats Through Optically Pumped Magnetometer Magnetoencephalography
Meng-Meng MIAO ; Yu-Xuan REN ; Wen-Wei WU ; Yu ZHANG ; Chen PAN ; Xiang-Hong LIN ; Hui-Dan LIN ; Xiao-Wei CHEN
Progress in Biochemistry and Biophysics 2025;52(1):244-257
ObjectiveMagnetoencephalography (MEG), a non-invasive neuroimaging technique, meticulously captures the magnetic fields emanating from brain electrical activity. Compared with MEG based on superconducting quantum interference devices (SQUID), MEG based on optically pump magnetometer (OPM) has the advantages of higher sensitivity, better spatial resolution and lower cost. However, most of the current studies are clinical studies, and there is a lack of animal studies on MEG based on OPM technology. Pain, a multifaceted sensory and emotional phenomenon, induces intricate alterations in brain activity, exhibiting notable sex differences. Despite clinical revelations of pain-related neuronal activity through MEG, specific properties remain elusive, and comprehensive laboratory studies on pain-associated brain activity alterations are lacking. The aim of this study was to investigate the effects of inflammatory pain (induced by Complete Freund’s Adjuvant (CFA)) on brain activity in a rat model using the MEG technique, to analysis changes in brain activity during pain perception, and to explore sex differences in pain-related MEG signaling. MethodsThis study utilized adult male and female Sprague-Dawley rats. Inflammatory pain was induced via intraplantar injection of CFA (100 μl, 50% in saline) in the left hind paw, with control groups receiving saline. Pain behavior was assessed using von Frey filaments at baseline and 1 h post-injection. For MEG recording, anesthetized rats had an OPM positioned on their head within a magnetic shield, undergoing two 15-minute sessions: a 5-minute baseline followed by a 10-minute mechanical stimulation phase. Data analysis included artifact removal and time-frequency analysis of spontaneous brain activity using accumulated spectrograms, generating spectrograms focused on the 4-30 Hz frequency range. ResultsMEG recordings in anesthetized rats during resting states and hind paw mechanical stimulation were compared, before and after saline/CFA injections. Mechanical stimulation elevated alpha activity in both male and female rats pre- and post-saline/CFA injections. Saline/CFA injections augmented average power in both sexes compared to pre-injection states. Remarkably, female rats exhibited higher average spectral power 1 h after CFA injection than after saline injection during resting states. Furthermore, despite comparable pain thresholds measured by classical pain behavioral tests post-CFA treatment, female rats displayed higher average power than males in the resting state after CFA injection. ConclusionThese results imply an enhanced perception of inflammatory pain in female rats compared to their male counterparts. Our study exhibits sex differences in alpha activities following CFA injection, highlighting heightened brain alpha activity in female rats during acute inflammatory pain in the resting state. Our study provides a method for OPM-based MEG recordings to be used to study brain activity in anaesthetized animals. In addition, the findings of this study contribute to a deeper understanding of pain-related neural activity and pain sex differences.
10.Analysis of clinical efficacy of C expanded half lamina excision combined with unilateral open-door laminoplasty for multiple segmental cervical spinal cord compression syndrome.
Ming FANG ; Jian-Meng LU ; Xing-Wu WANG ; Yong-Li WEI ; Wu-Liang YU ; Min-Hao LU
China Journal of Orthopaedics and Traumatology 2020;33(8):735-740
OBJECTIVE:
To explore the clinical efficacy of C expanded half lamina excision combined with unilateral open door laminoplasty for multiple segmental cervical spinal cord compression syndrome.
METHODS:
The clinical data of 58 patients with multiple segmental cervical spinal cord compression syndrome underwent surgical treatment between September 2014 and May 2018 were retrospectively analyzed. There were 34 males and 24 females with a mean age of 64.4 years old (ranged from 46 to 78 years old). Among them, 28 cases received the surgery of C expanded half lamina excision combined with C-C unilateral open-door laminoplasty (improvedgroup), and 30 cases received a single C-C unilateral open-door laminoplasty (traditional group). Operation time, intraoperative blood loss, complications including C nerve root palsy and axial symptoms were compared between two groups. To evaluate the situation of the imaging indicators by measuring the space available for the spinal cord through cross sectional MRI of cervical spine at the narrowest segment of C (including intervertebral disc levels of C). Pre- and post-operative Japanese Orthopedic Association(JOA) score, Neck Disability Index(NDI) score, and improvement rate of neurological function, were recorded and analyzed between the two groups.
RESULTS:
All the patients were followed up for 12 to 18 months with an average of(14.5±1.8) months for improved group and (14.5±1.9) months for traditional group, and no significant difference was found between the two groups (>0.05). There was no significant difference in intraoperative blood loss and C nerve root palsy between the two groups (>0.05). The operation time (119±10) min vs (126±12) min and axial symptoms 7.1%(2/28) vs 26.6%(8/30) was significant difference between the two groups (<0.05). Preoperative and postoperative space available for the spinal cord of C was (93.61±9.02) mm and (153.50±12.76) mm respectively, which was obtained obvious improvement in all patients(<0.05). At the final follow up, JOA scores of improved group and traditional group were 14.36±1.70 and 14.03±1.82 respectively, and NDI scores were 10.36±2.55 and 12.47±3.46 respectively, there was significant difference between two groups (<0.05). However, there was no significant difference between two groups for the improvement rate (68.36±0.12)%VS (65.01±0.12)%of neurological function(>0.05).
CONCLUSION
C expanded half lamina excision combined with unilateral open-door laminoplasty is an effective method to treat multiple segmental cervical spinal cord compression syndrome, for it can not only fully relieved spinal cord compression, but also achievedgood effect in preventing complications such as axial symptoms by reducing stripping of muscles from C2 spinous process.
Aged
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Cervical Vertebrae
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surgery
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Cross-Sectional Studies
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Female
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Humans
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Laminectomy
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Laminoplasty
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Male
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Middle Aged
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Retrospective Studies
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Spinal Cord Compression
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Treatment Outcome