Percepção do peso corporal e dificuldades encontradas pelas pessoas com deficiência visual na aquisição, na preparação e no consumo dos alimentos / Perception of body weight and difficulties encounteredby people with visual impairment in acquiring, preparing and consuming food

Objetivo: investigar a percepção do peso corporal e as dificuldades encontradas pelas pessoas com deficiência visual na aquisição, na preparação e no consumo dos alimentos. Metodologia: estudo observacional transversal, com adultos e idosos com deficiência visual em Pelotas/RS, realizado no período de abril a maio de 2023. Foi utilizado um questionário composto de 42 itens. Os dados coletados foram analisados por análise descritiva e analítica, e apresentados como média ± desvio padrão ou percentual. Resultados: a amostra contou com 20 pessoas, predominantemente do sexo feminino e idosas. Em relação ao consumo alimentar, 50% dos participantes consomem feijão, 75% frutas e hortaliças, 50% bebidas adoçadas, biscoitos recheados e doces. Referente à percepção do peso corporal, percebeu-se que a maior parte do grupo sente que está acima do peso adequado e se sentem "insatisfeitos(as)". Sobre as dificuldades encontradas, 85% dos participantes relataram dificuldade extrema para identificar a validade dos alimentos, 70% para comprar alimentos frescos e perecíveis e 40% para usar a faca para cortar e descascar os alimentos. Conclusão: verificou-se que a maior parte do grupo sente que está acima do peso adequado e estão "insatisfeitos(as)" em relação ao peso corporal. Além disso, dependem de outra pessoa para escolher os alimentos a serem comprados, saber o prazo de validade, preparar alimentos que precisam ser porcionados, servir refeições no prato, cortar carnes, descascar vegetais e frutas, utilizar faca, entre outros. Esta dependência pode influenciar diretamente no seu consumo alimentar quando essas pessoas se encontram sozinhas, optando por consumir alimentos industrializados de fácil preparo ou prontos.

Objective: to investigate the perception of body weight and the difficulties encountered by people with visual impairments in acquiring, preparing and consuming food. Methodology: cross-sectional observational study, with adults and elderly people with visual impairment in Pelotas/RS, carried out from April to May 2023. A questionnaire composed of 42 items was used. The collected data were analyzed using descriptive and analytical analysis, and presented as mean ± standard deviation or percentage. Results: the sample included 20 people, predominantly female and elderly. Regarding food consumption, 50% of participants consume beans, 75% fruits and vegetables, 50% sweetened drinks, stuffed cookies and sweets. Regarding the perception of body weight, it was noticed that the majority of the group feels that they are overweight and feel "dissatisfied". Regarding the difficulties encountered, 85% of participants reported extreme difficulty in identifying the expiration date of food, 70% in purchasing fresh and perishable foods and 40% in using a knife to cut and peel food. Conclusion: it was found that the majority of the group feels that they are overweight and are "dissatisfied" with their body weight. Furthermore, they depend on someone else to choose the food to be purchased, know the expiration date, prepare food that needs to be portioned, serve meals on the plate, cut meat, peel vegetables and fruits, use a knife, among others. This dependence can directly influence their food consumption when these people are alone, choosing to consume easily prepared or ready-made processed foods.

Acesso a serviço de saúde e reabilitação auditiva de adultos e idosos durante o período inicial da pandemia COVID-19 no Brasil / Access to health service and hearing rehabilitation for adult and older adults during the initial period of the COVID-19 pandemic in Brazil / Acceso a servicios de salud yrehabilitación auditiva para adultos y ancianos durante el período inicial de la pandemia COVID-19 en Brasil

Introdução: A perda auditiva é uma deficiência comum na população mundial e contribui para dificuldade na comunicação verbal e redução da qualidade de vida, evidenciando a importância da identificação precoce, reabilitação e acompanhamento audiológico dessa deficiência para mitigar suas consequências. Durante a pandemia da COVID-19, as medidas restritivas diminuíram a capacidade de atendimento dos serviços de saúde auditiva e dificultaram a busca de auxílio para resolver problemas relacionados à adaptação aos dispositivos eletrônicos de amplificação sonora (DAES), sendo uma barreira no processo de reabilitação da perda auditiva. Objetivo: Caracterizar os usuários de DEAS e o processo inicial de reabilitação auditiva de adultos e idosos e verificar fatores associados ao retorno para a consulta de monitoramento auditivo durante o período inicial da pandemia da COVID-19.Métodos: Estudo observacional transversal com usuários adultos e idosos de um serviço ambulatorial de saúde auditiva com retorno para consulta de monitoramento auditivo agendada no período inicial da implementação das medidas restritivas da pandemia da COVID-19 no Brasil. Resultados: A maioria dos participantes conseguiu retornou para a consulta de monitoramento auditivo, sendo eles em sua maioria idosos, do sexo feminino e vacinados contra a COVID-19. Houve maior prevalência de adaptação adequada aos DAES. Não houve associação estatística entre as variáveis relacionadas à adaptação aos DAES, COVID-19 e saúde mental e o retorno à consulta de monitoramento auditivo. Conclusão: Os fatores relacionados à adaptação aos DAES, à COVID-19 ou à saúde mental não influenciaram o retorno à consulta de monitoramento auditivo na presente pesquisa. (AU)

Introduction: Hearing loss is a common disability in the world population and contributes to difficulty in verbal communication and reduced quality of life, highlighting the importance of early identification, rehabilitation and audiological monitoring of this disability to mitigate its consequences. During the COVID-19 pandemic, restrictive measures reduced the service capacity of hearing health services and made it difficult to seek help to solve problems related to adaptation to personal sound amplification products (PSAPs), being a barrier in the rehabilitation process of hearing loss. Aim: To characterize PSAPs users and the initial hearing rehabilitation process for adults and elderly people and verify the factors associated with the return to hearing monitoring consultations in the initial period of the COVID-19 pandemic. Methods: Cross-sectional observational study with adults and elderly people: elderly users of an outpatient hearing health service who return for a scheduled hearing monitoring consultation in the initial period of the implementation of restrictive measures of the COVID-19 pandemic in Brazil. Results: Most participants were able to return to the hearing monitoring clinic, the majority of whom were elderly, female and vaccinated against COVID-19. There was a higher prevalence of adequate adaptation to the PSAPs. There was no statistical association between variables related to adaptation to PSAPs, COVID-19 and mental health and return to hearing monitoring consultation. Conclusion: Factors related to adaptation to PSAPs, COVID-19 or mental health did not influence the return to hearing monitoring consultation in the present investigation. (AU)

Introducción: La pérdida auditiva es una discapacidad común en la población mundial y contribuye a la dificultad en la comunicación verbal y a la reducción de la calidad de vida, destacando la importancia de la identificación temprana, rehabilitación y seguimiento audiológico de esta discapacidad para mitigar sus consecuencias. Durante la pandemia de COVID-19, las medidas restrictivas redujeron la capacidad de atención de los servicios de salud auditiva y dificultaron la búsqueda de ayuda para resolver problemas relacionados con la adaptación a dispositivos electrónicos de amplificación del sonido (DEAS), siendo una barrera en el proceso de rehabilitación de la pérdida auditiva. Objetivo: Caracterizar a los usuarios de DEAS y el proceso inicial de rehabilitación auditiva de adultos y ancianos y verificar los factores asociados al retorno a las consultas de monitorización auditiva en el período inicial de la pandemia COVID-19. Métodos: Estudio observacional transversal con adultos y ancianos: ancianos usuarios de un servicio ambulatorio de salud auditiva que regresan para consulta de monitorización auditiva programada en el período inicial de la implementación de medidas restrictivas de la pandemia de COVID-19 en Brasil. Resultados: La mayoría de los participantes pudieron regresar a la clínica de monitorización auditiva, la mayoría de los cuales eran ancianos, mujeres y estaban vacunados contra COVID-19. Hubo mayor prevalencia de adaptación adecuada a la DEAS. No hubo asociación estadística entre variables relacionadas con adaptación a DEAS, COVID-19 y salud mental y retorno a consulta de monitorización auditiva. Conclusión: Los factores relacionados con la adaptación a DEAS, el COVID-19 o la salud mental no influyeron en el retorno a la consulta de monitorización auditiva en la presente investigación. (AU)

Acteoside Attenuates Recognition Memory Impairment in CUMS Rats via Regulating Synaptic Plasticity and mTOR Signaling Pathway / El Acteoside Atenúa el Deterioro de la Memoria de Reconocimiento en Ratas ELCI Mediante la Regulación de la Plasticidad Sináptica y la Vía de Señalización mTOR

SUMMARY: We evaluated the role and mechanism of acteoside in the regulation of memory impairment induced by chronic unpredictable mild stress (CUMS). CUMS was used to induce depression in rats and the successful establishment of CUMS model were verified by forced swimming test and sucrose preference test. The Y-maze test and novel object recognition test assessed memory functions. The structural changes in the cortex and hippocampus were observed by hematoxylin and eosin (HE) staining. Immunofluorescence staining and western blotting determined the protein levels. Y-maze test and novel object recognition test showed that there was memory performance impairment in rats of CUMS group, which was improved by the acteoside treatment. HE staining showed that CUMS exposure damaged the structure in the cortex and hippocampus, while the acteoside treatment alleviated the structural changes. Compared with the control group, the levels of BNDF and CREB in the cortex and hippocampus of the CUMS group were significantly decreased. Acteoside significantly reversed the expressions of these proteins in CUMS rats. Meanwhile, compared with the control group, the levels of p-mTOR and p- P70S6K in the cortex and hippocampus of the CUMS group were significantly increased, and these changes were significantly reversed by acteoside. Nevertheless, the effect of acteoside on mTOR signaling was markedly blocked by rapamycin, a specific inhibitor of mTOR signaling. Acteoside can attenuate memory impairment and ameliorate neuronal damage and synaptic plasticity in depression rats probably via inhibiting the mTOR signaling pathway. Acteoside may serve as a novel reagent for the prevention of depression.

Evaluamos el papel y el mecanismo del acteoside en la regulación del deterioro de la memoria inducido por estrés leve crónico impredecible (ELCI). Se utilizó ELCI para inducir depresión en ratas y el establecimiento exitoso del modelo ELCI se verificó mediante una prueba de natación forzada y una prueba de preferencia de sacarosa. La prueba del laberinto en Y y la prueba de reconocimiento de objetos novedosos evaluaron las funciones de la memoria. Los cambios estructurales en la corteza y el hipocampo se observaron mediante tinción con hematoxilina y eosina (HE). La tinción por inmunofluorescencia y la transferencia Western determinaron los niveles de proteína. La prueba del laberinto en Y y la prueba de reconocimiento de objetos novedosos mostraron que había un deterioro del rendimiento de la memoria en ratas del grupo ELCI, que mejoró con el tratamiento con acteósidos. La tinción con HE mostró que la exposición a ELCI dañó la estructura de la corteza y el hipocampo, mientras que el tratamiento con actósidos alivió los cambios estructurales. En comparación con el grupo de control, los niveles de BNDF y CREB en la corteza y el hipocampo del grupo ELCI disminuyeron significativamente. Acteoside revirtió significativamente las expresiones de estas proteínas en ratas ELCI. Mientras tanto, en comparación con el grupo control, los niveles de p-mTOR y p-P70S6K en la corteza y el hipocampo del grupo ELCI aumentaron significativamente, y estos cambios fueron revertidos significativamente ELCI por el acteoside. Sin embargo, el efecto del acteoside sobre la señalización de mTOR fue notablemente bloqueado por la rapamicina, un inhibidor específico de la señalización de mTOR. El acteoside puede atenuar el deterioro de la memoria y mejorar el daño neuronal y la plasticidad sináptica en ratas con depresión, probablemente mediante la inhibición de la vía de señalización mTOR. Acteoside puede servir como un reactivo novedoso para la prevención de la depresión.

Serum autophagy-related gene 5 level in stroke patients: correlation with CD4+ T cells and cognition impairment during a 3-year follow-up

Abstract Autophagy-related gene (ATG) 5 regulates blood lipids, chronic inflammation, CD4+ T-cell differentiation, and neuronal death and is involved in post-stroke cognitive impairment. This study aimed to explore the correlation of serum ATG5 with CD4+ T cells and cognition impairment in stroke patients. Peripheral blood was collected from 180 stroke patients for serum ATG5 and T helper (Th) 1, Th2, Th17, and regulatory T (Treg) cell detection via enzyme-linked immunosorbent assays and flow cytometry. The Mini-Mental State Examination (MMSE) scale was completed at enrollment, year (Y)1, Y2, and Y3 in stroke patients. Serum ATG5 was also measured in 50 healthy controls (HCs). Serum ATG5 was elevated in stroke patients compared to HCs (P<0.001) and was positively correlated to Th2 cells (P=0.022), Th17 cells (P<0.001), and Th17/Treg ratio (P<0.001) in stroke patients but not correlated with Th1 cells, Th1/Th2 ratio, or Treg cells (all P>0.050). Serum ATG5 (P=0.037), Th1 cells (P=0.022), Th17 cells (P=0.002), and Th17/Treg ratio (P=0.018) were elevated in stroke patients with MMSE score-identified cognition impairment vs those without cognition impairment, whereas Th2 cells, Th1/Th2 ratio, and Treg cells were not different between them (all P>0.050). Importantly, serum ATG5 was negatively linked with MMSE score at enrollment (P=0.004), Y1 (P=0.002), Y2 (P=0.014), and Y3 (P=0.001); moreover, it was positively related to 2-year (P=0.024) and 3-year (P=0.012) MMSE score decline in stroke patients. Serum ATG5 was positively correlated with Th2 and Th17 cells and estimated cognitive function decline in stroke patients.

FNDC5/Irisin in dementia and cognitive impairment: update and novel perspective

Epidemiological surveys show that the incidence of age-related dementia and cognitive impairment is increasing and it has been a heavy burden for society, families, and healthcare systems, making the preservation of cognitive function in an increasingly aging population a major challenge. Exercise is beneficial for brain health, and FDNC5/irisin, a new exercise-induced myokine, is thought to be a beneficial mediator to cognitive function and plays an important role in the crosstalk between skeletal muscle and brain. This review provides a critical assessment of the recent progress in both fundamental and clinical research of FDNC5/irisin in dementia and cognitive impairment-related disorders. Furthermore, we present a novel perspective on the therapeutic effectiveness of FDNC5/irisin in alleviating these conditions.

Effect of support surface stability on balance in the elderly with mild cognitive impairment under different visual input conditions / 中国组织工程研究

BACKGROUND:Stability of the support surface and visual input are important factors affecting static balance,but most of the studies on the balance ability of elderly with mild cognitive impairment have focused on the stable hard support surface,and the control of static balance on the unstable support surface under different visual input conditions is not known. OBJECTIVE:To investigate the static balance ability of the elderly with mild cognitive impairment on soft and hard support surfaces under different visual input conditions. METHODS:Twenty-one elderly people with mild cognitive impairment and nineteen elderly people with normal cognition were selected for the study,and the Kistler three-dimensional dynamometer was used to conduct four tests:standing with two feet on hard support surface with eyes open,standing with two feet on soft support surface with eyes open,standing with two feet on hard support surface with eyes closed,standing with two feet on soft support surface with eyes closed,and standing with two feet on soft support surface with eyes closed,and the duration of each test was 30 seconds.The plantar center of pressure data were collected and compared between the two groups under different visual conditions on the soft and hard support surfaces. RESULTS AND CONCLUSION:(1)Under the condition of visual input,the total excursions(soft support surface:P=0.003),the total excursions-medial-lateral sides(soft support surface:P=0.001,hard support surface:P<0.001)and the 95%confidence ellipse area(soft support surface:P=0.001,hard support surface:P<0.001)of the center of pressure in the elderly with mild cognitive impairment on the soft and hard support surfaces were significantly higher than those of the elderly with normal cognition.(2)In the absence of visual input,the root mean square distance(P=0.014),the root mean square distance-medial-lateral sides(P=0.014),and the 95%confidence ellipse area(P=0.001)of center of pressure in the elderly with mild cognitive impairment on the soft support surfaces were significantly higher than those of the elderly with normal cognition,but there were no significant differences between the groups on the hard support surface(P>0.05).(3)These findings confirm that compared with the elderly with normal cognition who could make full use of visual sensory input to maintain body balance on the soft and hard support surfaces,mild cognitive impairment elderly presented a deficit in balance function.In particular,mild cognitive impairment elderly relied more on ankle proprioception to maintain balance when visual interference was present,suggesting that mild cognitive impairment elderly should focus on strengthening ankle proprioceptive training.

Correlation between non-high density lipoprotein cholesterol,homocysteine levels and cognitive impairment,prognosis in patients with thalamic infarction / 新乡医学院学报

Objective To investigate the correlation between non-high density lipoprotein cholesterol(non-HDL-C),homocysteine(Hey)levels and cognitive impairment,prognosis in patients with thalamic infarction.Methods Eighty thalamic infarction patients admitted to Puyang People's Hospital from March 2017 to March 2021 were selected as the research sub-jects.According to Montreal cognitive assessment(MoCA)score,the patients were divided into cognitive impairment group(MoCA score＜26,n=35)and cognitive normal group(MoCA score 26-30,n=45).Another 50 healthy individuals who un-derwent physical examinations during the same period were selected as the control group.The serum cholesterol(TC),high-density lipoprotein cholesterol(HDL-C),Hcy levels of all subjects were detected by fully automated biochemical analyzer,and the non-HDL-C levels were calculated.The correlations between non-HDL-C,Hey levels and MoCA scores were analyzed by Pearson correlation analysis,and the diagnostic efficacy of non-HDL-C,Hcy levels for cognitive impairment of patients with tha-lamic infarction was analyzed by receiver operating characteristic curve.According to the modified Rankin scale(mRS)score,the patients with thalamic infarction were divided into good prognosis group(mRS score ≤2,n=50)and poor prognosis group(mRS score 3-6,n=50).The independent risk factors for poor prognosis of patients with thalamic infarction was analyzed by multivariate logistic regression.Results The serum levels of non-HDL-C and Hcy of patients in the cognitive impairment group were significantly higher than those in the cognitive normal group and control group(P＜0.05);there was no significant difference in the serum non-HDL-C,Hcy levels of subjects between the control group and the cognitive normal group(P＞0.05).The non-HDL-C,Hcy levels were negatively correlated with MoCA scores in thalamic infarction patients(P＜0.05).The area under the curve(AUC)of Hcy level in the diagnosis of cognitive impairment was 0.709,the sensitivity was 0.724 and the specificity was 0.630;the AUC of non-HDL-C level in the diagnosis of cognitive impairment was 0.738,the sensitivity was 0.701 and the specificity was 0.870;the AUC of Hey combined with non-HDL-C in the diagnosis of cognitive impairment was 0.769,the sensitivity was 0.758 and the specificity was 0.889.The diagnostic efficacy of Hey combined with non-HDL-C for cognitive impairment was superior to that of non-HDL-C or Hey alone.Atrial fibrillation,elevated levels of non-HDL-C,Hcy and NIHSS score were independent risk factors for poor prognosis of patients with thalamic infarction(P＜0.05).Conclusion The levels of non-HDL-C and Hey are positively correlated with cognitive impairment in patients with thalamic infarction.The levels of non-HDL-C and Hey can be used to diagnose cognitive impairmnent in patients with thalamic infarction,and the combined detection has a better diagnostic effect.Atrial fibrillation,elevated levels of non-HDL-C,Hcy and NIHSS score are independent risk factors for poor prognosis in patients with thalamic infarction.

Role of histone deacetylase in the sensory gating impairment of offspring during puberty caused by immune activation in pregnant rats / 新乡医学院学报

Objective To investigate the expression of histone deacetylase(HDAC)isoforms in the frontal lobe,hippo-campus and liver of offspring rats delivered by rats with maternal immune activation and their correlation with the efficiency of prepulse inhibition(PPI％).Methods Ten pregnant Sprague-Dawley rats were randomly divided into the model group(n=5)and control group(n=5).The rats in the model group were injected with 10 mg·kg-1 polyinosinic-polycytidylic acid(Poly I:C)via the caudal vein on the 9th day of pregnancy,while rats in the control group were given the same volume of sterile physiological saline.After 3 h,blood was collected from the caudal vein,and the levels of interleukin(IL)-1 β,IL-6 and tumor necrosis factor-α(TNF-α)in the plasma of pregnant rats were detected by enzyme-linked immunosorbent assay to evaluate the immune activation status.The pregnant rats in the two groups were fed until natural delivery,the offspring rats were weaned on the 21st day after birth,and the male offspring rats were fed continuously.A prepulse inhibition test was performed at puberty(the 40th day after birth)to evaluate the spatial recognition memory and sensory gating function of the offspring rats.The expression levels of the HDAC gene family in the hippocampus,frontal lobe and liver of offspring rats were detected by real-time fluorescence quantitative polymerase chain reaction.Results The plasma IL-6,IL-1 β and TNF-α levels in the model group were significantly higher than those in the control group(P＜0.05).When the prepulse stimulation was 75 dB,the PPI％of the offspring rats at puberty in the model group was significantly lower than that in the control group(P＜0.05).When the prepulse stimulation was 80 and 85 dB,there was no significant difference in PPI％between the model group and the control group(P＞0.05).In the frontal lobe,the expression levels of HDAC3,HDAC4,HDAC8,HDAC9,HDAC10 and Sirt mRNA in the offspring rats in the model group were significantly lower than those in the control group(P＜0.05),while the expression level of HDAC5 mRNA was significantly higher than that in the control group(P＜0.05);there were no significant differences in the expression levels of HDAC1,HDAC2,HDAC6,HDAC7 and HDAC11 mRNA between the model group and the control group(P＞0.05).In the hippocampus,the offspring rats in the model group had significantly lower expression levels of HDAC1,HDAC8 and HDAC10 mRNA and significantly higher expression levels of HDAC2 and HDAC5 mRNA than those in the control group(P＜0.05);there were no significant differences in the expression levels of HDAC3,HDAC4,HDAC6,HDAC7,HDAC9,HDAC11 and Sirt mRNA between the model group and control group(P＞0.05).In the liver tissue,the expression levels of HDAC6 and HDAC10 mRNA of the offspring rats in the model group were significantly lower than those in the control group(P＜0.05);there were no significant differences in the expression levels of HDAC1,HDAC2,HDAC3,HDAC4,HDAC5,HDAC7,HDAC8,HDAC9,HDAC11 and Sirt mRNA between the model group and the control group(P＞0.05).The expression level of HDAC2 mRNA in the hippocampus of offspring rats in the two groups was negatively correlated with PPI％at 75 dB(r=-0.965,P＜0.05),the expression levels of HDAC10 and Sirt mRNA in frontal lobe tissues were positively correlated with PPI％at 75dB(r=0.946,0.925;P＜0.05).Conclusion Pregnancy Poly I:C infection has significant effects on the expression of HDAC family proteins in offspring rats,and which is related to the impairment of early sensory gating,this may provide new ideas for the research in pathogenesis and drug treatment of schizophrenia.

Effects of melatonin on learning and memory abilities of fluoride-exposed offspring rats / 中华地方病学杂志

Objective:To investigate the effect of melatonin (MEL) on learning and memory abilities of fluoride-exposed offspring rats and the role of gut microbiota.Methods:Twelve 8-week-old Sprague-Dawley (SD) rats (8 females and 4 males) with a body weight ranging from 180 to 220 g were selected and divided into control group 1 and fluoride-exposed group 1 using a random number table method, with 6 rats in each group (female ∶ male = 2 ∶ 1). They were free to drink purified water or purified water containing 100 mg/L sodium fluoride, respectively. After 2 months, male and female rats were raised together in cages, and the first postnatal day (PND) of the offspring rats was recorded as PND0. In PND21, the offspring rats of fluoride-exposed group 1 were divided into fluoride-exposed group (Group F, n = 6) and fluoride + MEL group (Group FM, n = 6) using a group design, and continued to be exposed to fluoride through drinking water. The offspring rats of control group 1 were divided into control group (Group C, n = 6) and MEL group ( n = 6). The groups FM and MEL were given 20 mg/kg MEL by gavage, while the groups C and F were given the same dose of normal saline by gavage. In PND60, novel object recognition and Morris water maze tests were used to observe the learning and memory abilities of the offspring rats. Western blotting (WB) was used to detect the expression level of brain derived neurotrophic factor (BDNF) in the hippocampus of the offspring rats. And 16S rDNA sequencing technology was used to detect the changes in the structure and composition of gut microbiota in fecal samples. Results:The results of novel object recognition test showed that there was a statistically significant difference in the discrimination index (DI) among the four groups of offspring rats ( F = 3.95, P = 0.024). The DI in groups C and FM was higher than that of Group F ( P < 0.05). The results of Morris water maze test showed that compared with Group C, the platform-crossing time of the offspring rats of Group F were less and they had a longer time to reach the platform for the first time ( P < 0.05). Compared with Group F, the platform-crossing time of the offspring rats of Group FM were increased and they had a shorter time to reach the platform for the first time ( P < 0.05). The WB results showed that compared with Group C (1.00 ± 0.07), the expression level of BDNF protein in Group F (0.68 ± 0.26) was lower ( P < 0.05). Compared with Group F, the expression level of BDNF protein in Group FM (0.99 ± 0.14) was higher ( P < 0.05). Anosim similarity analysis showed significant differences in the structure and composition of gut microbiota in the four groups of offspring rats ( R = 0.395 062, P = 0.002). The distribution characteristics of gut microbiota species showed that at the phylum level, compared with Group C, the relative abundance of Bacteroidetes in Group F increased from 14.26% to 37.00%, and the relative abundance of Firmicutes decreased from 68.78% to 45.95%. Compared with Group F, the relative abundance of Firmicutes in Group FM increased from 45.95% to 65.26%, and the relative abundance of Bacteroidetes decreased from 37.00% to 23.00%. At the genus level, compared with Group C, the relative abundance of Lactobacillus, Dubosiella, HT002 and UCG-005 in Group F was lower, while the relative abundance of unclassified Muribaculaceae was higher. Compared with Group F, the relative abundance of Lactobacillus, Dubosiella, HT002 and UCG-005 in Group FM was higher, while the relative abundance of unclassified Muribaculaceae was lower. The results of linear discriminant analysis revealed that the Candidatus-Saccharimonas and Incertae-Sedis were significantly enriched in Group C, unclassified Muribaculaceae and Muribaculum were significantly enriched in Group F, and Allorhizobium- Neorhizobium- Pararhizobium- Rhizobium were significantly enriched in Group FM. Conclusion:MEL can improve the learning and memory impairment of offspring rats induced by fluoride exposure by changing the structure and composition of gut microbiota.

Recent advance in multimodal magnetic resonance imaging of the hippocampus and its circuits in cognitive impairment / 中华神经医学杂志

The hippocampus and its circuits play crucial roles in human learning, memory, and emotional regulation. Whether it is vascular cognitive impairment (VCI) or Alzheimer's disease (AD), damage to the hippocampus is a prominent pathological feature. This review summarizes the recent advance in multimodal magnetic resonance imaging in anatomy, blood supply, structure and function of the hippocampus and the circuits related to VCI and AD in recent years, aiming to provide help in early recognizing and differentially diagnosing VCI and AD.

Recent advance in role of cerebral microvascular lesions in type 2 diabetes mellitus-associated cognitive impairment / 中华神经医学杂志

Cognitive impairment is a common clinical complication in type 2 diabetes (T2DM). T2DM-related cognitive impairment has complex and multifactorial pathogenesis. Cerebral microvascular dysfunction is an important pathological change in patients with T2DM and pre-T2DM, and it can induce blood-brain barrier injury and impaired blood perfusion regulation, with disturbed neurovascular coupling and cerebral autoregulation, leading cognitive impairment. This article reviews the epidemiology and pathophysiological mechanisms related to T2DM cerebral microvascular lesions and cognitive impairment, and how to monitor changes of cerebral microvascular structure and function so as to provide new approach for diagnosis and treatment of T2DM-related cognitive impairment.

Recent advance in functional near-infrared spectroscopy in post-stroke depression and cognitive impairment / 中华神经医学杂志

In recent years, post-stroke depression (PSD) and post-stroke cognitive impairment (PSCI) have gradually attracted the attention of scholars as common stroke-related non-motor symptoms. As an emerging non-invasive neuroimaging tool, functional near-infrared spectroscopy (fNIRS) has been widely used in the study of neurological diseases, which can evaluate the functional status and recovery of these patients by monitoring changes in cerebral blood circulation and oxygenation signals; fNIRS is now being increasingly used in PSD and PSCI studies. This review mainly focuses on the research progress of fNIRS in identifying PSD and PSCI, exploring their neural mechanisms, and evaluating treatment effects, as well as advantages, disadvantages and future development prospects of fNIRS in clinical application, so as to provide some references for research on rehabilitation of affective disorders and cognitive disorders in stroke patients.

The effect of ozone exposure on asthma and the potential mechanisms / 上海预防医学

Near-surface ozone is a profoundly reactive and highly oxidizing gas and one of the critical respiratory toxicants. Numerous epidemiological investigations have indicated that asthmatic individuals are the vulnerable group of ozone exposure， and there is a strong correlation between ozone exposure and asthma morbidity and mortality rates. The potential mechanisms include oxidative stress， inflammatory response， autonomic nerve impairment， and immune dysfunction. The present study summarized and discussed the effect of ozone exposure on asthma and its underlying biological mechanisms in order to galvanize public cognizance concerning the perils of ozone pollution and serve as a reference for future research on ozone exposure and asthma.

Research on the status and risk factors of cognitive function among nursing home population in Changning District, Shanghai / 公共卫生与预防医学

Objective To investigate the prevalence and risk factors of cognitive impairment in the nursing home population in Changning District, Shanghai. Methods In this study, random cluster sampling method was used to select 570 elderly people from 5 nursing homes in Changning District. Multivariate logistic regression was used to analyze the risk factors influencing cognitive function. Results The total prevalence of cognitive impairment in Changning nursing home population was 22.5%. The prevalence rates of ≤80 and >80 age groups were 16.8% and 23.9%, respectively, and the prevalence rates of men and women were 19.2% and 23.9%, respectively. Multivariate analysis showed that age ≥ 80 years old (OR=1.839, 95% CI: 1.045~3.235), no habit of reading book or newspaper (OR=2.087, 95%CI: 1.282~3.398), limitation of daily activity ability (OR=1.577, 95% CI: 1.023~2.431), and having depressive symptoms (OR=2.809, 95% CI: 1.840~4.288) were all influencing factors for cognitive impairment. Conclusion More than one fifth of elderly people in nursing homes in Changning District have symptoms of cognitive impairment. It is necessary to carry out routine cognitive assessment and appropriate cognitive intervention for the nursing home population to reduce the health and economic losses caused by cognitive impairment.

Correlation Analysis and Comparison of Adult CE-Chirp ABR Response Threshold and Pure Tone Hearing Threshold / 法医学杂志

Objective To study the application of CE-Chirp in the evaluation of hearing impairment in forensic medicine by testing the auditory brainstem response(ABR)in adults using CE-Chirp to ana-lyze the relationship between the V-wave response threshold of CE-Chirp ABR test and the pure tone hearing threshold.Methods Subjects(aged 20-77 with a total of 100 ears)who underwent CE-Chirp ABR test in Changzhou De'an Hospital from January 2018 to June 2019 were selected to obtain the V-wave response threshold,and pure tone air conduction hearing threshold tests were conducted at 0.5,1.0,2.0 and 4.0 kHz,respectively,to obtain pure tone listening threshold.The differences and statistical differences between the average pure tone hearing threshold and V-wave response threshold were compared in different hearing levels and different age groups.The correlation,differences and statistical differences between the two tests at each frequency were analyzed for all subjects.The lin-ear regression equation for estimating pure tone hearing threshold for all subjects CE-Chirp ABR V-wave response threshold was established,and the feasibility of the equation was tested.Results There was no statistical significance in the CE-Chirp ABR response threshold and pure tone hearing threshold dif-ference between different hearing level groups and different age groups(P>0.05).There was a good correlation between adult CE-Chirp ABR V-wave response threshold and pure tone hearing threshold with statistical significance(P<0.05),and linear regression analysis showed a significant linear correla-tion between the two(P<0.05).Conclusion The use of CE-Chirp ABR V-wave response threshold can be used to evaluate subjects'pure tone hearing threshold under certain conditions,and can be used as an audiological test method for forensic hearing impairment assessment.

Relationship between serum TSP-1 and Trx1 levels and cognitive impairment after cerebral infarction / 国际检验医学杂志

Objective To investigate the relationship between serum levels of thrombospondin-1(TSP-1)and thioredoxin 1(Trx1)and cognitive impairment after cerebral infarction.Methods A total of 155 patients with cerebral infarction(study group)admitted to a hospital from June 2021 to December 2022 were selected as the study objects,and were divided into normal cognitive function group(97 cases)and cognitive impair-ment group(58 cases)according to the scores of the montreal cognitive assessment scale(MoCA)after the pa-tients'condition stabilized.Another 150 healthy subjects in the same period were selected as the control group.Serum TSP-1 and Trx1 levels were detected by enzyme-linked immunosorbent assay(ELISA).Spearman analysis was used to analyze the correlation between serum TSP-1 and Trx1 levels and national in-stitutes of health stroke scale(NIHSS)score and MoCA score in patients with cerebral infarction.The predic-tive value of serum TSP-1 and Trx1 levels in cognitive impairment after cerebral infarction was analyzed by receiver operating characteristic(ROC)curve.Results Compared with the control group,the levels of serum TSP-1 and Trx1 in the study group were significantly higher,and the differences were statistically significant(P＜0.05).Compared with the normal cognitive function group,the levels of serum TSP-1 and Trx1 in the cognitive impairment group were significantly higher,and the difference was statistically significant(P＜0.05).Compared with the normal cognitive function group,the NIHSS score of the cognitive impairment group was significantly higher,and the MoCA score was significantly lower,with statistical significance(P＜0.05).Spearman correlation analysis showed that serum TSP-1 and Trx1 levels were positively correlated with NIHSS score(P＜0.05),and negatively correlated with MoCA score(P＜0.05)in patients with cerebral infarction.ROC curve analysis showed that the area under the curve(AUC)of serum TSP-1 to predict cogni-tive impairment after cerebral infarction was 0.834,and the sensitivity and specificity were 72.41％and 86.60％,respectively.Serum Trx1 level alone predicted the AUC of cognitive impairment after cerebral infarc-tion was 0.851,and its sensitivity and specificity were 70.69％and 85.57％,respectively.The AUC of the combined prediction of cognitive impairment after cerebral infarction was 0.926,which was significantly greater than that of serum TSP-1 alone(Z=3.050,P=0.002)and Trx1 alone(Z=2.846,P=0.004).Conclusion Serum TSP-1 and Trx1 levels are elevated in patients with cerebral infarction,and their levels have certain predictive value for cognitive impairment after cerebral infarction.

Electro-acupuncture for Vascular Cognitive Impairment:A Visualized Data Mining Analysis / 广州中医药大学学报

Objective To summarize the acupoints and parameters commonly used in the treatment of vascular cognitive impairment(VCI)by electro-acupuncture(EA)through the visual data mining technique to provide a reference basis for clinical treatment.Methods The clinical studies of EA on the treatment of VCI were searched in CNKI,Wanfang,VIP,CBM,PubMed,Embase,Cochrane Library,web of science and other major databases.The literature is managed by Note Express and the database is established by Excel.The frequency of selected acupoints,frequency,meridian tropism,parameter frequency and frequency of used acupoints are counted.Factor analysis is carried out by SPSS 21.0 software.SPSS Modeler 18.3 software is used to analyze association rules and co-occurrence network,and the analysis results are visualized by Cytoscape 3.9.1 software.Results Finally,155 papers were included,containing 155 acupoint prescriptions and 157 parameter prescriptions.Acupoint prescriptions involved 100 acupoints with a total frequency of 856 times;parameter prescriptions involved 33 parameters with a total frequency of 788 times.Conclusion At present,there is a big difference between the clinical studies,and there is no recognized acupoint and parameter for EA treatment of VCI.By further summarizing the law of EA acupuncture point and parameter,the study has sorted out the law of commonly used acupoints,meridian tropism,compounding and parameter selection for EA treatment of VCI.It was concluded that the selection of acupoints mainly started from the three aspects of deficiency,phlegm and stasis,focusing on the combination of local and distal selection of acupoints,through the identification of internal organs and meridians,to achieve the simultaneous regulation of the heart,spleen and kidney,and to take into account both the symptoms and the root cause,and to play the roles of opening the orifices to wake up mind,calming mind and benefiting intellect,strengthening the spleen and tonifying the kidneys,and invigorating blood circulation to remove stasis.The parameters of EA are recommended to be sparse and dense wave,low frequency,as tolerated by the patient,30 minutes/times,1 time/day,5 times/week as the main combinations,which can provide a certain reference basis for clinical decision-making.

Value of Multimodal Ultrasonography Combined with Clinical Indicators in Predicting the Progression of Ischemic Stroke / 昆明医科大学学报

Objective To investigate the clinical value of multimodal ultrasonography combined with clinical indicators in predicting the progression of ischemic stroke(IS).Methods A total of 134 patients with IS admitted to Third People's Hospital of Yunnan Province from January 2020 to October 2022 were selected as study objects and were divided into progressive ischemic stroke(PIS)group(n=20)and non-progressive ischemic stroke(NPIS)group(n=114)according to the National Institutes of Health Stroke Scale(NIHSS)score.The clinical indicators,multi-modal ultrasonic image manifestations and related parameters of the two groups were counted,the influencing factors of PIS were screened by Logistics,the nomogram model was drawn,and the predictive efficiency of the nomogram model was evaluated by ROC curve and calibration curve.Results There were significant differences in age,baseline nutritional risk index(GNRI)score,baseline homocysteine(Hcy)and baseline uric acid(UA)between the two groups(P<0.05).The peak time(TTP),peak intensity(PI),the area under the curve(AUC),carotid plaque enhancement mode,the mean value of maximum elastic modulus(MEmax)and mean value of minimum elastic modulus(MEmin)were compared between the two groups,and the differences were statistically significant(P<0.05).Logistic analysis showed that baseline GNRI score,baseline UA,TTP,PI,AUCTC,carotid plaque enhancement pattern,MEmax and MEmin were the influencing factors of PIS(P<0.05).Based on the above factors,the nomogram model was drawn.ROC curve and calibration curve showed that the model had good prediction efficiency,and the prediction efficiency was in good agreement with the reality.Conclusion The influencing factors of PIS include baseline GNRI score,baseline UA,TTP,PI,AUCTC,carotid plaque enhancement pattern,MEmax,MEmin,and the neagram model based on the above factors has good differentiation and accuracy.

Research progress on the regulation of cognitive decline by microglia in aging / 临床神经病学杂志

The incidence of dementia increased significantly in the context of an aging population,imposing a significant burden on the economy and society.Therefore,finding the specific mechanism underlying cognitive decline in aging is of paramount significance.Recently,the role of microglia in the initiation and progression of cognitive decline in aging has become a research hotspot.Microglia,the resident immune cells of CNS,play important roles in immunosurveillance,synaptic pruning,damage repair and maintaining immune homeostasis.However,microglia undergo a variety of changes in cell morphology,gene expression and functional status with aging.This article review the impact of normal aging on microglia and the role of microglia in the pathogenesis of cognitive decline in aging,to provide a novel strategy for slowing or preventing the onset of dementia.

Progress of olfactory changes in metabolic diseases and the mechanisms / 上海交通大学学报（医学版）

Metabolic disorders,characterized by a complex pathogenesis,are experiencing a rising prevalence globally and a trend toward younger populations,making them a significant public health concern.Olfaction,a crucial sensory function,plays a pivotal role in an individual's nutrition and quality of life.There is a bidirectional relationship between obesity and olfactory function.Olfaction is influenced by nutritional status;simultaneously,it plays a vital role in the regulation of food intake,energy expenditure,and lipid metabolism.Moreover,individuals with metabolic disorders such as type 2 diabetes and obstructive sleep apnea syndrome exhibit olfactory dysfunction.Mechanisms underlying olfactory changes in metabolic disorders involve alterations in metabolic states such as hyperglycemia and insulin resistance.These changes can lead to dysregulation of peptide hormones,adipocyte factors,and neurotransmitters,which may potentially act as mediators between metabolic disorders and olfactory dysfunction.Vascular and neural alterations resulting from metabolic disorders can directly damage olfactory nerves or induce abnormal neural transmission.Furthermore,dysbiosis in the gut microbiota induced by metabolic disorders is a potential mechanism for olfactory dysfunction.Cognitive dysfunction is a significant complication of metabolic disorders.Olfactory dysfunction can serve as an early clinical manifestation of cognitive impairment and contributes to early identification and assessment of diseases.This article reviews recent researches on the relationship between metabolic diseases and olfactory changes and the potential mechanisms.