BACKGROUND ： Functional magnetic resonance imaging （fMRI） studies have disclosed the changes of the motor function in the motor cortex of ipsilateral and contralateral hemispheres of tumor, which have special signi...BACKGROUND ： Functional magnetic resonance imaging （fMRI） studies have disclosed the changes of the motor function in the motor cortex of ipsilateral and contralateral hemispheres of tumor, which have special significance for making the surgical planning and most greatly minimizing the postoperative functional damages. OBJECTIVE： To analyze the association between the manifestation characteristics of hand functional area and motor dysfunction using fMRI in patients with space-occupying lesions of tumor in motor cortex. DESIGN ： A case-controlled observation SETTING： Department of Radiology, Second Affiliated Hospital, Shantou University Medical College .PARTICIPANTS： Twenty-three patients （13 males and 10 females） with space-occupying lesions of central sulcus area, aged 21-53 years with a mean age of （47±1） years were selected from the Second Affiliated Hospital of Shantou University Medical College. All the patients were diagnosed by MR scanning as space-occupying lesions of motor area, and pathologically confirmed that the lesions involved central sulcus and central Iobule; Lesions occurred in left and right hemispheres in 13 and 10 cases respectively. The tumor types were astrocytoma （n =8）, metastatic tumours （n =7）, meningiomas （n =5） and oligodendroglioma （n =3）. The muscle strength was normal in 11 cases （grade 5） and obviously decreased in 12 cases （grade 2-3 in 3 cases and grade 4 in 9 cases）; muscle strengths of both upper and lower limbs were decreased in 7 cases, and only that of upper limbs was decreased in 5 cases. Informed consents were obtained from all the subjects. Meanwhile, 9 healthy physical examinees （5 males and 4 females） of 20-56 years old with an average of （34±1） years were taken as controls. All the patients and healthy subjects were right-handed. METHODS： All the enrolled subjects were examined with MR scanning and functional imaging. Twenty cases whose clinical symptoms were mild in the patient group and 9 healthy volunteers adopted simple active finger-tapping movements, and for the 3 cases whose clinical symptoms were severe in the patient group, the simple passive finger-tapping movements were used. The manifestations in the activated brain areas were analyzed in the patients with brain tumor of different muscle strength and the controls. The motor deficit and activation of contralateral primary motor cortex （M1） in simple finger-tapping movements were observed in the patient group. MAIN OUTCOME MEASURES： （1） Brain areas activated by finger-tapping movements in each group： （2） Activated volumes in hemisphere by finger-tapping movements between groups. RESULTS： The contralateral M1 area could not be activated in 1 case in the patient group,, all the other 22 patients and 9 healthy subjects were involved in the analysis of results. （1） In the control group, unilateral finger tapping movement activated the contralateral primary motor cortex （M1）, bilateral SMA and bilateral PMC. The activation volume was the largest in contralateral primary motor cortex （M1）, smaller in the SMA, and the smallest in PMC. The finger tapping movement in healthy subjects could activate contralateral primary motor cortex （M1）, bilateral SMA and bilateral PMC, which had no obvious differences from the manifestations of brain functional area activated by active finger tapping. There was no significant difference in the volume of activated functional areas between right and left hands. In the patient group, the central sulcos around the tumor in the activated M1 area displaced towards dorsal or ventral side, also extended. The distance of displacement in the functional area was determined as compared with the contralateral central sulcus, and the results suggested the M1 displacement, including that there were 10 cases with the M1 displacement larger than 10 mm in the patients with motor deficit, which were obviously more than in those without motor deficit （n =1, P 〈 0.01）, and the activated volume in contralateral M1 area was obvious smaller in the patients with motor deficit than in those without motor deficit （P 〈 0.01）. （2） The M1 activation and changes were observed in contralateral hemisphere in the patient group, and the activated volume was obviously larger than that in the control group （P 〈 0.01）. The activated volumes of M1 and PMC in ipsilateral hemisphere were obviously larger than those in the control group （P 〈 0.05）, but that of SMA had no obvious difference between the two groups （P 〉 0.05）. CONCLUSION： fMRI can be used to observe the activation of the brain motor functional areas of patient with space-occupying lesions in motor area, and evaluate the state of their motor function. The larger the distance of displacement of M1 compressed by tumor, the more obviously the muscle strength decreases in the patients.展开更多
目的:观察醒脑开窍针法配合康复训练对中风后遗症患者言语及吞咽障碍的影响。方法:选取2021年1月至2022年6月在赣州市人民医院就诊的中风后遗症言语及吞咽障碍患者92例,随机分为对照组与观察组,每组各46例。对照组采用常规治疗联合康复...目的:观察醒脑开窍针法配合康复训练对中风后遗症患者言语及吞咽障碍的影响。方法:选取2021年1月至2022年6月在赣州市人民医院就诊的中风后遗症言语及吞咽障碍患者92例,随机分为对照组与观察组,每组各46例。对照组采用常规治疗联合康复训练,观察组在对照组治疗的基础上联合醒脑开窍针法,连续治疗1个月,比较两组患者的中医证候积分、语言能力、洼田饮水试验评分、吞咽情况、生活质量,不良反应等。结果:对照组有效率为80.43%,观察组有效率为96.65%,两组有效率比较,差异有统计学意义(P<0.05)。两组患者治疗后中医证候积分、洼田饮水试验评分低于本组治疗前,语言能力、吞咽障碍特异性生活质量量表(swallowing quality of life, SWAL-QOL)、简易精神状态量表(mini-mental state examination, MMSE)、蒙特利尔认知评估量表(Montreal cognitive assessment, MoCA)、日常生活能力量表(activity of daily living scale, ADL)评分高于本组治疗前,且治疗后组间比较,差异有统计学意义(P<0.05)。结论:醒脑开窍针法联合康复训练治疗中风后遗症,可改善患者语言能力及吞咽障碍,提高认知功能及日常生活能力。展开更多
目的探讨通督益脑化痰法结合针刺促进急性缺血性卒中吞咽障碍痰瘀阻络证患者康复效果。方法研究纳入112例急性缺血性卒中吞咽障碍痰瘀阻络证患者以随机数字表法纳入患者分为对照组(56例)、中医组(56例),给予对照组患者咽部肌肉电刺激治...目的探讨通督益脑化痰法结合针刺促进急性缺血性卒中吞咽障碍痰瘀阻络证患者康复效果。方法研究纳入112例急性缺血性卒中吞咽障碍痰瘀阻络证患者以随机数字表法纳入患者分为对照组(56例)、中医组(56例),给予对照组患者咽部肌肉电刺激治疗,给予中医组患者咽部肌肉电刺激结合通督益脑化痰法及针刺治疗,各组数据观察:治疗前后患者洼田饮水试验评分(water test score,WST)变化及功能性经口摄食量表(functional oral feeding scale,FOIS)评分变化、吞咽困难评价量表(dysphagia evaluation scale,VFSS)及标准吞咽功能评价量表(standard swallowing function evaluation scale,SSA)评分变化、治疗效果、并发症、治疗前后患者中医证候总积分及美国国立卫生研究院卒中量表(national institutes of health stroke scale,NIHSS)评分变化、治疗,前后患者脑源性神经营养因子(brain-derived neurotrophic factor,BDNF)及白细胞介素-6(interleukin-6,IL-6)、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)水平变化、生活质量量表(generic quality of life inventory-74,GQOLI-74)评分变化。结果治疗前,各组患者WST评分、FOIS评分、VFSS评分、SSA评分、中医证候总积分以及NIHSS评分、BDNF、IL-6及TNF-α水平、GQOLI-74评分等指标比较,差异无统计学意义(P>0.05),治疗后各组患者WST评分、FOIS评分、VFSS评分、SSA评分、中医证候总积分以及NIHSS评分、BDNF、IL-6及TNF-α水平、GQOLI-74评分等指标均改善,中医组患者治疗后WST评分、FOIS评分、VFSS评分、SSA评分、中医证候总积分以及NIHSS评分、BDNF、IL-6及TNF-α水平、GQOLI-74评分等指标均优于对照组(P<0.05);中医组患者治疗总有效率高于对照组,并发症发生率低于对照组(均P<0.05)。结论通督益脑化痰法结合针刺疗法可较好促进急性缺血性卒中吞咽障碍痰瘀阻络证患者康复,患者治疗效果提升,吞咽功能及神经功能、生活质量均改善,且患者并发症率低,较为安全可靠,值得应用。展开更多
Tongguan Liqiao acupuncture therapy has been shown to effectively treat dysphagia after stroke-based pseudobulbar paralysis. We presumed that this therapy would be effective for dysphagia after bulbar paralysis in pat...Tongguan Liqiao acupuncture therapy has been shown to effectively treat dysphagia after stroke-based pseudobulbar paralysis. We presumed that this therapy would be effective for dysphagia after bulbar paralysis in patients with brainstem infarction. Sixty-four patients with dysphagia following brainstem infarction were recruited and divided into a medulla oblongata infarction group（n = 22）, a midbrain and pons infarction group（n = 16）, and a multiple cerebral infarction group（n = 26） according to their magnetic resonance imaging results. All patients received Tongguan Liqiao acupuncture for 28 days. The main acupoints were Neiguan（PC6）, Renzhong（DU26）, Sanyinjiao（SP6）, Fengchi（GB20）, Wangu（GB12）, and Yifeng（SJ17）. Furthermore, the posterior pharyngeal wall was pricked. Before and after treatment, patient swallowing functions were evaluated with the Kubota Water Test, Fujishima Ichiro Rating Scale, and the Standard Swallowing Assessment. The Barthel Index was also used to evaluate their quality of life. Results showed that after 28 days of treatment, scores on the Kubota Water Test and Standard Swallowing Assessment had decreased, but scores on the Fujishima Ichiro Rating Scale and Barthel Index had increased in each group. The total efficacy rate was 92.2% after treatment, and was most obvious in patients with medulla oblongata infarction（95.9%）. These findings suggest that Tongguan Liqiao acupuncture therapy can repair the connection of upper motor neurons to the medulla oblongata motor nucleus, promote the recovery of brainstem infarction, and improve patient＇s swallowing ability and quality of life.展开更多
Several mammalian animal models of traumatic brain injury have been used, mostly rodents. However, reparative mechanisms in mammalian brain are very limited, and newly formed neurons do not survive for long time. The ...Several mammalian animal models of traumatic brain injury have been used, mostly rodents. However, reparative mechanisms in mammalian brain are very limited, and newly formed neurons do not survive for long time. The brain of adult zebrafish, a teleost fish widely used as vertebrate model, possesses high regenerative properties after injury due to the presence of numerous stem cells niches. The ventricular lining of the zebrafish dorsal telencephalon is the most studied neuronal stem cell niche because its dorso-lateral zone is considered the equivalent to the hippocampus of mammals which contains one of the two constitutive neurogenic niches of mammals. To mimic TBI, stab wound in the dorso-lateral telencephalon of zebrafish was used in studies devoted to fish regenerative properties. Brain-derived neurotrophic factor, which is known to play key roles in the repair process after traumatic brain lesions, persists around the lesioned area of injured telencephalon of adult zebrafish. These results are extensively compared to reparative processes in rodent brain. Considering the complete repair of the damaged area in fish, it could be tempting to consider brain-derived neurotrophic factor as a factor contributing to create a permissive environment that enables the establishment of new neuronal population in damaged brain.展开更多
Patients with type 2 diabetes mellitus(T2 DM) often have cognitive impairment and structural brain abnormalities.The magnetic resonance imaging(MRI)-based brain atrophy and lesion index can be used to evaluate common ...Patients with type 2 diabetes mellitus(T2 DM) often have cognitive impairment and structural brain abnormalities.The magnetic resonance imaging(MRI)-based brain atrophy and lesion index can be used to evaluate common brain changes and their correlation with cognitive function,and can therefore also be used to reflect whole-brain structural changes related to T2 DM.A total of 136 participants(64 men and 72 women,aged 55–86 years) were recruited for our study between January 2014 and December 2016.All participants underwent MRI and Mini-Mental State Examination assessment(including 42 healthy control,38 T2 DM without cognitive impairment,26 with cognitive impairment but without T2 DM,and 30 T2 DM with cognitive impairment participants).The total and sub-category brain atrophy and lesion index scores in patients with T2 DM with cognitive impairment were higher than those in healthy controls.Differences in the brain atrophy and lesion index of gray matter lesions and subcortical dilated perivascular spaces were found between non-T2 DM patients with cognitive impairment and patients with T2 DM and cognitive impairment.After adjusting for age,the brain atrophy and lesion index retained its capacity to identify patients with T2 DM with cognitive impairment.These findings suggest that the brain atrophy and lesion index,based on T1-weighted and T2-weighted imaging,is of clinical value for identifying patients with T2 DM and cognitive impairment.Gray matter lesions and subcortical dilated perivascular spaces may be potential diagnostic markers of T2 DM that is complicated by cognitive impairment.This study was approved by the Medical Ethics Committee of University of South China(approval No.USC20131109003) on November 9,2013,and was retrospectively registered with the Chinese Clinical Trial Registry(registration No.Chi CTR1900024150) on June 27,2019.展开更多
基金a grant from theMedical Scientific ResearchFoundation of GuangdongProvince, No. A2003526
文摘BACKGROUND ： Functional magnetic resonance imaging （fMRI） studies have disclosed the changes of the motor function in the motor cortex of ipsilateral and contralateral hemispheres of tumor, which have special significance for making the surgical planning and most greatly minimizing the postoperative functional damages. OBJECTIVE： To analyze the association between the manifestation characteristics of hand functional area and motor dysfunction using fMRI in patients with space-occupying lesions of tumor in motor cortex. DESIGN ： A case-controlled observation SETTING： Department of Radiology, Second Affiliated Hospital, Shantou University Medical College .PARTICIPANTS： Twenty-three patients （13 males and 10 females） with space-occupying lesions of central sulcus area, aged 21-53 years with a mean age of （47±1） years were selected from the Second Affiliated Hospital of Shantou University Medical College. All the patients were diagnosed by MR scanning as space-occupying lesions of motor area, and pathologically confirmed that the lesions involved central sulcus and central Iobule; Lesions occurred in left and right hemispheres in 13 and 10 cases respectively. The tumor types were astrocytoma （n =8）, metastatic tumours （n =7）, meningiomas （n =5） and oligodendroglioma （n =3）. The muscle strength was normal in 11 cases （grade 5） and obviously decreased in 12 cases （grade 2-3 in 3 cases and grade 4 in 9 cases）; muscle strengths of both upper and lower limbs were decreased in 7 cases, and only that of upper limbs was decreased in 5 cases. Informed consents were obtained from all the subjects. Meanwhile, 9 healthy physical examinees （5 males and 4 females） of 20-56 years old with an average of （34±1） years were taken as controls. All the patients and healthy subjects were right-handed. METHODS： All the enrolled subjects were examined with MR scanning and functional imaging. Twenty cases whose clinical symptoms were mild in the patient group and 9 healthy volunteers adopted simple active finger-tapping movements, and for the 3 cases whose clinical symptoms were severe in the patient group, the simple passive finger-tapping movements were used. The manifestations in the activated brain areas were analyzed in the patients with brain tumor of different muscle strength and the controls. The motor deficit and activation of contralateral primary motor cortex （M1） in simple finger-tapping movements were observed in the patient group. MAIN OUTCOME MEASURES： （1） Brain areas activated by finger-tapping movements in each group： （2） Activated volumes in hemisphere by finger-tapping movements between groups. RESULTS： The contralateral M1 area could not be activated in 1 case in the patient group,, all the other 22 patients and 9 healthy subjects were involved in the analysis of results. （1） In the control group, unilateral finger tapping movement activated the contralateral primary motor cortex （M1）, bilateral SMA and bilateral PMC. The activation volume was the largest in contralateral primary motor cortex （M1）, smaller in the SMA, and the smallest in PMC. The finger tapping movement in healthy subjects could activate contralateral primary motor cortex （M1）, bilateral SMA and bilateral PMC, which had no obvious differences from the manifestations of brain functional area activated by active finger tapping. There was no significant difference in the volume of activated functional areas between right and left hands. In the patient group, the central sulcos around the tumor in the activated M1 area displaced towards dorsal or ventral side, also extended. The distance of displacement in the functional area was determined as compared with the contralateral central sulcus, and the results suggested the M1 displacement, including that there were 10 cases with the M1 displacement larger than 10 mm in the patients with motor deficit, which were obviously more than in those without motor deficit （n =1, P 〈 0.01）, and the activated volume in contralateral M1 area was obvious smaller in the patients with motor deficit than in those without motor deficit （P 〈 0.01）. （2） The M1 activation and changes were observed in contralateral hemisphere in the patient group, and the activated volume was obviously larger than that in the control group （P 〈 0.01）. The activated volumes of M1 and PMC in ipsilateral hemisphere were obviously larger than those in the control group （P 〈 0.05）, but that of SMA had no obvious difference between the two groups （P 〉 0.05）. CONCLUSION： fMRI can be used to observe the activation of the brain motor functional areas of patient with space-occupying lesions in motor area, and evaluate the state of their motor function. The larger the distance of displacement of M1 compressed by tumor, the more obviously the muscle strength decreases in the patients.
文摘目的:观察醒脑开窍针法配合康复训练对中风后遗症患者言语及吞咽障碍的影响。方法:选取2021年1月至2022年6月在赣州市人民医院就诊的中风后遗症言语及吞咽障碍患者92例,随机分为对照组与观察组,每组各46例。对照组采用常规治疗联合康复训练,观察组在对照组治疗的基础上联合醒脑开窍针法,连续治疗1个月,比较两组患者的中医证候积分、语言能力、洼田饮水试验评分、吞咽情况、生活质量,不良反应等。结果:对照组有效率为80.43%,观察组有效率为96.65%,两组有效率比较,差异有统计学意义(P<0.05)。两组患者治疗后中医证候积分、洼田饮水试验评分低于本组治疗前,语言能力、吞咽障碍特异性生活质量量表(swallowing quality of life, SWAL-QOL)、简易精神状态量表(mini-mental state examination, MMSE)、蒙特利尔认知评估量表(Montreal cognitive assessment, MoCA)、日常生活能力量表(activity of daily living scale, ADL)评分高于本组治疗前,且治疗后组间比较,差异有统计学意义(P<0.05)。结论:醒脑开窍针法联合康复训练治疗中风后遗症,可改善患者语言能力及吞咽障碍,提高认知功能及日常生活能力。
文摘目的探讨通督益脑化痰法结合针刺促进急性缺血性卒中吞咽障碍痰瘀阻络证患者康复效果。方法研究纳入112例急性缺血性卒中吞咽障碍痰瘀阻络证患者以随机数字表法纳入患者分为对照组(56例)、中医组(56例),给予对照组患者咽部肌肉电刺激治疗,给予中医组患者咽部肌肉电刺激结合通督益脑化痰法及针刺治疗,各组数据观察:治疗前后患者洼田饮水试验评分(water test score,WST)变化及功能性经口摄食量表(functional oral feeding scale,FOIS)评分变化、吞咽困难评价量表(dysphagia evaluation scale,VFSS)及标准吞咽功能评价量表(standard swallowing function evaluation scale,SSA)评分变化、治疗效果、并发症、治疗前后患者中医证候总积分及美国国立卫生研究院卒中量表(national institutes of health stroke scale,NIHSS)评分变化、治疗,前后患者脑源性神经营养因子(brain-derived neurotrophic factor,BDNF)及白细胞介素-6(interleukin-6,IL-6)、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)水平变化、生活质量量表(generic quality of life inventory-74,GQOLI-74)评分变化。结果治疗前,各组患者WST评分、FOIS评分、VFSS评分、SSA评分、中医证候总积分以及NIHSS评分、BDNF、IL-6及TNF-α水平、GQOLI-74评分等指标比较,差异无统计学意义(P>0.05),治疗后各组患者WST评分、FOIS评分、VFSS评分、SSA评分、中医证候总积分以及NIHSS评分、BDNF、IL-6及TNF-α水平、GQOLI-74评分等指标均改善,中医组患者治疗后WST评分、FOIS评分、VFSS评分、SSA评分、中医证候总积分以及NIHSS评分、BDNF、IL-6及TNF-α水平、GQOLI-74评分等指标均优于对照组(P<0.05);中医组患者治疗总有效率高于对照组,并发症发生率低于对照组(均P<0.05)。结论通督益脑化痰法结合针刺疗法可较好促进急性缺血性卒中吞咽障碍痰瘀阻络证患者康复,患者治疗效果提升,吞咽功能及神经功能、生活质量均改善,且患者并发症率低,较为安全可靠,值得应用。
基金supported by a grant from the Construction of Traditional Chinese Medicine Prevention and Treatment of Apoplexy Comprehensive System,No.201007002
文摘Tongguan Liqiao acupuncture therapy has been shown to effectively treat dysphagia after stroke-based pseudobulbar paralysis. We presumed that this therapy would be effective for dysphagia after bulbar paralysis in patients with brainstem infarction. Sixty-four patients with dysphagia following brainstem infarction were recruited and divided into a medulla oblongata infarction group（n = 22）, a midbrain and pons infarction group（n = 16）, and a multiple cerebral infarction group（n = 26） according to their magnetic resonance imaging results. All patients received Tongguan Liqiao acupuncture for 28 days. The main acupoints were Neiguan（PC6）, Renzhong（DU26）, Sanyinjiao（SP6）, Fengchi（GB20）, Wangu（GB12）, and Yifeng（SJ17）. Furthermore, the posterior pharyngeal wall was pricked. Before and after treatment, patient swallowing functions were evaluated with the Kubota Water Test, Fujishima Ichiro Rating Scale, and the Standard Swallowing Assessment. The Barthel Index was also used to evaluate their quality of life. Results showed that after 28 days of treatment, scores on the Kubota Water Test and Standard Swallowing Assessment had decreased, but scores on the Fujishima Ichiro Rating Scale and Barthel Index had increased in each group. The total efficacy rate was 92.2% after treatment, and was most obvious in patients with medulla oblongata infarction（95.9%）. These findings suggest that Tongguan Liqiao acupuncture therapy can repair the connection of upper motor neurons to the medulla oblongata motor nucleus, promote the recovery of brainstem infarction, and improve patient＇s swallowing ability and quality of life.
文摘Several mammalian animal models of traumatic brain injury have been used, mostly rodents. However, reparative mechanisms in mammalian brain are very limited, and newly formed neurons do not survive for long time. The brain of adult zebrafish, a teleost fish widely used as vertebrate model, possesses high regenerative properties after injury due to the presence of numerous stem cells niches. The ventricular lining of the zebrafish dorsal telencephalon is the most studied neuronal stem cell niche because its dorso-lateral zone is considered the equivalent to the hippocampus of mammals which contains one of the two constitutive neurogenic niches of mammals. To mimic TBI, stab wound in the dorso-lateral telencephalon of zebrafish was used in studies devoted to fish regenerative properties. Brain-derived neurotrophic factor, which is known to play key roles in the repair process after traumatic brain lesions, persists around the lesioned area of injured telencephalon of adult zebrafish. These results are extensively compared to reparative processes in rodent brain. Considering the complete repair of the damaged area in fish, it could be tempting to consider brain-derived neurotrophic factor as a factor contributing to create a permissive environment that enables the establishment of new neuronal population in damaged brain.
基金supported by the National Natural Science Foundation of China,No.81271538 (to SNP)345 Talent Project and the Natural Science Foundation of Liaoning Province of China,No.2019-ZD-0794 (to SNP)+1 种基金the Natural Science Foundation of Hunan Province of China,Nos.2017JJ2225 (to JCL),2018JJ2357 (to GHL)Hunan Provincial Science and Technology Innovation Program of China,No.2017SK50203 (to HZ)。
文摘Patients with type 2 diabetes mellitus(T2 DM) often have cognitive impairment and structural brain abnormalities.The magnetic resonance imaging(MRI)-based brain atrophy and lesion index can be used to evaluate common brain changes and their correlation with cognitive function,and can therefore also be used to reflect whole-brain structural changes related to T2 DM.A total of 136 participants(64 men and 72 women,aged 55–86 years) were recruited for our study between January 2014 and December 2016.All participants underwent MRI and Mini-Mental State Examination assessment(including 42 healthy control,38 T2 DM without cognitive impairment,26 with cognitive impairment but without T2 DM,and 30 T2 DM with cognitive impairment participants).The total and sub-category brain atrophy and lesion index scores in patients with T2 DM with cognitive impairment were higher than those in healthy controls.Differences in the brain atrophy and lesion index of gray matter lesions and subcortical dilated perivascular spaces were found between non-T2 DM patients with cognitive impairment and patients with T2 DM and cognitive impairment.After adjusting for age,the brain atrophy and lesion index retained its capacity to identify patients with T2 DM with cognitive impairment.These findings suggest that the brain atrophy and lesion index,based on T1-weighted and T2-weighted imaging,is of clinical value for identifying patients with T2 DM and cognitive impairment.Gray matter lesions and subcortical dilated perivascular spaces may be potential diagnostic markers of T2 DM that is complicated by cognitive impairment.This study was approved by the Medical Ethics Committee of University of South China(approval No.USC20131109003) on November 9,2013,and was retrospectively registered with the Chinese Clinical Trial Registry(registration No.Chi CTR1900024150) on June 27,2019.
