1. Imaging effect of 3D-nerve sequence on brachial plexus in neonates
Chinese Journal of Medical Imaging Technology 2019;35(11):1733-1736
Objective: To analyze the imaging effect of 3D-nerve on brachial plexus in neonates compared with DWI with background body singal suppression (DWIBS), 3D-short T1 inversion recovery (3D-STIR). Methods: A total of 15 neonates with brachial plexus injury were recruited and underwent MR scan with sequences including 3D-nerve, DWBIS, 3D-STIR. Images were evaluated for pulsation artifact, heterogeneous fat saturation, brachial plexus branches, nerve-fat ratio, nerve-muscle ratio. Results: The brachial plexus showed poor results in DWIBS sequence images, which could not be observed. Pulsation artifact and heterogeneous fat saturation had no statistical significance between 3D-nerve and 3D-STIR (both P>0.05). 3D-nerve and 3D-STIR showed 100% (15/15) of the brachial plexus roots and brachial plexus trunks. Brachial plexus bundles, brachial plexus branches were seen in 100% (15/15), 66.67% (10/15) on 3D nerve and 93.33% (14/15), 53.33% (8/15) on 3D-STIR, the differences were not statistically significant (P=1.00, 0.71). 3D-nerve performed better nerve-to-fat ratio and neuro-to-muscle ratio compared with 3D-STIR (both P<0.05). Conclusion: The 3D-nerve performed better for neonatal brachial plexus injury than DWBIS and 3D-STIR.
2.Expression and Significance of Serum Mir-132 in Patients with Obstructive Sleep Apnea with Cognitive Impairment
Xin-li WANG ; Li GU ; Li-mei ZHAO ; Cong LI ; Gui-yang LIU ; Bo ZHANG ; Hong-jie WANG ; Tao LI
Journal of Sun Yat-sen University(Medical Sciences) 2019;40(1):104-109
【Objective】To explore the relationship between the miR- 132 expression in serum and cognitive deficits of OSA. 【Methods】 66 Chinese adults age 30 to 60 years old were enrolled and categorized into two groups based on Montreal Cognitive Assessment(MoCA)scores: OSA patients with cognitive impairment(OSAI,n=36),OSA patients without cognitive impairment(OSAN,n=30),and thirty adults without OSA as healthy control group(HC,n=30). Out- of- center cardiopulmonary sleep testing (OCST) and MoCA assessment were performed and the relative expression of miR-132 in serum was detected by PCR.【Results】No significant difference was observed in age,education,gender and hypertension(P>0.05). The relative expression level of miR-132 was significantly up-regulated in OSAI patient′s serum compared to the OSAN and HC patients (P<0.001),and had a positive correlation with MoCA score (r=- 0.726,P<0.001). ROC analyses showed that the areas under the curve(AUC)were statistically significant from the line of identity in OSA with cognitive impairment(AUC=0.935,95% CI:0.890- 0.981,P<0.001)and in OSA(AUC=0.787,95% CI:0.695-0.879,P<0.001).【Conclusions】Elevated serum miR-132 expression levels are closely related to the diagnosis of OSA and its cognitive dysfunction. Detection of serum miR- 132 may be a potential indicator of cognitive dysfunction and diagnosis in OSA patients.
3.Research progress on the factors influencing the biological characteristics of dental pulp stem cells
HU Huiting ; YU Fenglin ; ZHAO Yueping
Journal of Prevention and Treatment for Stomatological Diseases 2019;27(4):268-272
Dental pulp stem cells (DPSCs) are mesenchymal stem cells derived from dental pulp tissue with self-renewal, high proliferative capacity and multidirectional differentiation potential. Under appropriate induction conditions, DPSCs can be differentiated into various types of cells, such as osteoblasts, odontoblasts, chondrocytes, adipocytes, and neuronal cells. DPSCs have been gradually applied to clinical trials and preclinical studies and are important seed cells in the field of periodontal tissue engineering and regenerative medicine. In this paper, the factors affecting the biological characteristics of DPSCs are reviewed together with a review of recent literature published worldwide. The results of the literature review show that the biological characteristics of DPSCs can be influenced by many factors, such as tissue source, culture method, environment and induction conditions, which has guiding significance for research and applications of DPSCs.
4.Early visual quality and stereopsis after implantation of trifocal intraocular lenses
Kaifang WANG ; Kejiao ZHAO ; Chuanjing GAO ; Mingchao QIAO ; Juanjuan ZHENG ; Songsong QIAO ; Xiaoming WANG
International Eye Science 2025;25(4):656-660
AIM:To investigate the visual quality and stereopsis after the implantation of PanOptix trifocal intraocular lens(TFNT00).METHODS: A prospective clinical study was conducted. A total of 36 cataract patients(50 eyes)who underwent phacoemulsification combined with TFNT00 implantation in Jinan Mingshui Eye Hospital from November 2022 to April 2024 were selected. They were followed up until 3 mo after the operation. The uncorrected distance visual acuity(UCDVA), uncorrected intermediate visual acuity(UCIVA), uncorrected near visual acuity(UCNVA), objective scatter index(OSI), modulation transfer function cut off(MTF-cut-off), Strehl ratio(SR)and 100%, 20%, 9% contrast visual acuity(CVA)were observed. The binoptometer was used to collect the patients' far and near stereopsis acuities. The defocus curve was drawn after the operation; the Chinese version of the VF-14 Visual Function Index Scale was used to evaluate the visual quality and satisfaction after the operation.RESULTS: There were statistically significant differences in the UCDVA, UCIVA and UCNVA of the patients at different time after the operation(all P<0.05). The transition of the defocus curve was gentle between +0.5--3.0 D after the operation. The OSI value at 3 mo postoperatively after the operation was significantly lower than that before the operation(P<0.01), and the MTF-cut-off, SR, 100% CVA, 20% CVA and 9% CVA were significantly improved than those before operation(all P<0.01). The far and near stereopsis acuities of 34 patients were abnormal before the operation. The far stereopsis acuities of the patients who underwent bilateral eye surgeries were all normal after the operation, and the near stereopsis acuity of 12 patients was normal. Among the patients who underwent unilateral eye surgeries, the far stereopsis acuities of 13 patients were normal, and the near stereopsis acuities of 11 patients were normal. The far and near stereopsis acuities of the patients who underwent bilateral eye surgeries were significantly better than those patients who underwent unilateral eye surgeries.CONCLUSION: The PanOptix trifocal intraocular lens can provide patients with good full-range visual acuity. The stereopsis of the patients with bilateral implants is better than that of the patients with unilateral implants. The overall visual quality and satisfaction of the patients after the operation are relatively high.
5.Research advances in the correlations between periodontal disease and autophagy
Journal of Prevention and Treatment for Stomatological Diseases 2018;26(4):268-272
Periodontal disease is a common and frequently occurring oral disease, with numerous investigations on periodontitis etiology and treatment. The development of periodontal disease is affected by many factors, including local stimulation and systemic risk factors, and dental plaque biofilm is regarded as an initial factor. The molecular mechanisms of how dental plaque biofilm and other risk factors regulate the development of periodontal disease remain unclear. Autophagy is a ubiquitous self-regulating mechanism of eukaryotes and a process of cell self-phagocytosis and digestion. Autophagy is a complex process, involving a variety of cellular and tissue activities, including cellular stress, clearance of endogenous and exogenous cellular components, development, aging and cancer. Recent studies have shown that autophagy is closely related to inflammation. This paper addresses recent research advances in understanding the correlations between periodontal disease and autophagy to provide a reference in the study of new methods to treat periodontal disease from the perspective of autophagy in the future.
6.Leucine-rich Glioma-inactivated Protein 1 Antibody-associated Encephalitis:Report of Two Cases.
Acta Academiae Medicinae Sinicae 2019;41(5):714-718
Leucine-rich glioma-inactivated protein 1(LGI1)antibody-associated encephalitis is an autoimmune brain disease mainly seen in mid-aged and elderly people.Its main clinical manifestations include abnormal mental behaviors,facial-arm dystonia,hyponatremia,and hypokalemia.Immunotherapy with gamma globulin and/or hormone is effective.Two patients with LGT1 antibody-associated encephalitis were diagnosed in our center between January 2018 and October 2018,with typical clinical findings.The disease was cursed after immunoglobulin and hormone treatments.
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7.Accuracy comparison of different formulas in calculating intraocular lens power in cataract patients after corneal refractive surgery
Kaifang WANG ; Mingchao QIAO ; Songsong QIAO ; Kejiao ZHAO ; Xiaoming WANG
International Eye Science 2024;24(7):1143-1146
AIM: To compare and observe the accuracy of five intraocular lens(IOL)power calculation formulas in patients with cataracts who have previously undergone corneal refractive surgery.METHODS: Prospective case series study. A total of 23 cataract patients(34 eyes)with a history of myopic corneal refractive surgery at Jinan Mingshui Eye Hospital from September 2021 to March 2023 were collected, including 1 eye treated with photorefractive keratectomy(PRK)and 22 patients(33 eyes)treated with laser-assisted in situ keratomileusis(LASIK). Preoperative ocular biometry was performed using the IOL Master 700, while corneal true net refractive power(TNP)was measured via Pentacam analyzer. Anterior segment optical coherence tomography(OCT)was used to assesse net corneal power(NCP), posterior corneal refractive power, and central corneal thickness(CCT). The Shammas, Haigis-L, Potvin-Hill Pentacam, OCT, and Barrett True K formulas were utilized for IOL power calculations, with the optimal power selected accordingly. At 1 mo postoperatively, actual refractive outcomes were determined through subjective refraction, based on objective optometry results. The refractive prediction error(RPE)and refractive absolute error(RAE)of each formula were calculated and compared, and the percentage of eyes with RAE ≤0.5 D and ≤1.0 D was counted.RESULTS: No significant statistical difference was found in the RPE of the five formulas when compared to zero(all P>0.05), nor were there significant differences in RPE and RAE among the formulas(F=0.554, P=0.696; H=4.402, P=0.354). The RAE was within ≤0.5 D for 26 eyes(76%)using the Potvin-Hill Pentacam formula and for 24 eyes(71%)using the Barrett True K formula, with both formulas achieving an RAE within ≤1.0D in 33 eyes(97%).CONCLUSIONS: The Barrett True K and Potvin-Hill Pentacam formulas demonstrated high predictive accuracy for IOL power calculations in post-corneal refractive surgery cataract patients. Given the variability in corneal refractive power among these patients, further research on IOL power calculation is warranted. Clinically, it is advisable to consider a range of formulas for optimal outcomes.
8.Comparison of the accuracy of intraocular lens calculation formulas based on different types of corneal refractive power
Kaifang WANG ; Songsong QIAO ; Kejiao ZHAO ; Mingchao QIAO ; Xiaoming WANG
International Eye Science 2025;25(7):1172-1176
AIM: To compare the accuracy of intraocular lens(IOL)calculation formulas based on different corneal refractive power in calculating IOL diopters of cataract patients with a history of corneal refractive surgery.METHODS: A prospective clinical study was conducted with a cohort of 32 cataract patients(42 eyes)who had previously undergone myopic laser corneal surgery at Jinan Mingshui Eye Hospital between February 2022 and August 2024. The study employed several IOL calculation formulas, including the Haigis-L formula, the Barrett True K formula based on simulated keratometry(SimK), the Haigis formula based on total keratometry(TK), the Potvin-Hill Pentacam(PVP)formula based on corneal true net power(TNP), and the OCT formula based on net corneal power(NCP). These formulas were used to calculate IOL power and predict postoperative refractive outcomes. At 1 mo postoperatively, subjective refraction was performed, and the prediction error(PE), mean absolute prediction error(MAE), median absolute prediction error(MedAE), and the percentage of prediction errors within the ranges of ±0.25, ±0.50, ±0.75, and ±1.0 D were determined.RESULTS: The intraclass correlation coefficient for the four types of corneal refractive power was 0.986(P<0.001). There was no significant difference between TNP and NCP(P=0.491), and there were differences between the other two groups(all P<0.001). Statistically significant differences were observed between PE and 0 for the Haigis-L(K)and Haigis(TK)formulas(all P<0.001). In contrast, no statistically significant differences were noted between PE and 0 for the PVP, OCT, and Barrett True K formulas(all P>0.05). The MedAE value of Barrett True K was the smallest 0.32(0.19, 0.71)D among the five formulas, and there was no significant difference in MedAE among the five formulas(P=0.870). The proportion of eyes with PE within ±0.25 and ±1.0 D in Barrett True K formula was 38%(16/42)and 95%(40/42), respectively. The proportion of eyes within ±0.50 D in PVP formula was 71%(30/42); and the proportion of eyes with PE within ±0.75 D in Haigis(TK)formula was 83%(35/42).CONCLUSION: After corneal refractive surgery, there are differences between different types of corneal refractive power. When calculating IOL, the accuracy of TK combined with Haigis formula is better than that of Haigis-L(K)formula, and Barrett True K formula shows good accuracy.
9.Clinical observation of 25G+minimally invasive vitrectomy in the treatment of retinal arterial macroaneurysm
Nan ZHAO ; Tongtong LIU ; Yige XIA ; Haohao LU ; Yanhui HAN
International Eye Science 2025;25(7):1191-1194
AIM:To observe the therapeutic efficacy of 25G+minimally invasive vitrectomy for retinal arterial macroaneurysm.METHODS:Totally 40 patients(40 eyes)who admitted to Jinan Mingshui Eye Hospital from January 2021 to May 2024 and with vitreous hemorrhage or dense premacular hemorrhage in the macular area caused by retinal arterial macroaneurysm, underwent 25G+minimally invasive vitrectomy. Preoperative and postoperative best-corrected visual acuity(BCVA), complications, and special cases were analyzed.RESULTS: The general patient data aligned with previous literature reports. The postoperative BCVA was significantly improved(t=9.72, P<0.01), and no significant serious surgical complications were observed. Notably, intraoperative findings revealed secondary macular holes in 3 eyes, resulting in poor visual prognosis.CONCLUSION: For vitreous hemorrhage or dense premacular hemorrhage caused by retinal arterial macroaneurysm, 25G+ minimally invasive vitrectomy is a safe and effective treatment. Visual prognosis was excluded for secondary macular holes.
10.Guidance forcase handling of arranging radiation workers who have not undergone an occupational health examination to engage in radiological diagnosis and treatment work
Zhaolin GAO ; Jun ZHAO ; Gang YANG
Chinese Journal of Radiological Health 2022;31(4):460-463
Through the development of the guidance for case handling of radiological health law enforcement, health supervisors are instructed to accurately grasp the key points of law enforcement and case handling and standardize the process of collecting evidence and law application to ensure the correct implementation of administrative penalty. This article explains the structure and content of the guidance for case handling of radiological health law enforcement by taking the case of arranging radiation workers who have not undergone an occupational health examination to engage in the radiological occupational-disease-inductive operation in medical institutions as an example.