Repetitive transcranial magnetic stimulation （rTMS） is a non-invasive treatment that can enhance the recovery of neurological function after stroke. Whether it can similarly promote the recovery of cognitive functio...Repetitive transcranial magnetic stimulation （rTMS） is a non-invasive treatment that can enhance the recovery of neurological function after stroke. Whether it can similarly promote the recovery of cognitive function after vascular dementia remains unknown, In this study, a rat model for vascular dementia was established by the two-vessel occlusion method. Two days after injury, 30 pulses of rTMS were ad- ministered to each cerebral hemisphere at a frequency of 0.5 Hz and a magnetic field intensity of 1,33 T. The Morris water maze test was used to evaluate learning and memory function. The Karnovsky-Roots method was performed to determine the density of cholinergic neurons in the hippocampal CA1 region. Immunohistochemical staining was used to determine the number of brain-derived neurotroph- ic factor （BDNF）-immunoreactive cells in the hippocampal CA1 region, rTMS treatment for 30 days significantly improved learning and memory function, increased acetylcholinesterase and choline acetyltransferase activity, increased the density of cholinergic neurons, and increased the number of BDNF-immunoreactive cells. These results indicate that rTMS can ameliorate learning and memory deficiencies in rats with vascular dementia, The mechanism through which this occurs might be related to the promotion of BDNF expression and subsequent restoration of cholinergic system activity in hippocampal CA 1 region.展开更多
BACKGROUNDParagonimiasis is a typical food-borne zoonotic disease. Hosts acquire Paragonimusinfection through the ingestion of raw or undercooked crayfish and crab.The clinical manifestations of the disease are varied...BACKGROUNDParagonimiasis is a typical food-borne zoonotic disease. Hosts acquire Paragonimusinfection through the ingestion of raw or undercooked crayfish and crab.The clinical manifestations of the disease are varied, and it is often misdiagnosedor missed. The diagnosis of paragonimiasis should be considered comprehensively.Praziquantel is the first choice for treatment, and albendazole can beused in combination with repeated courses in severe cases.CASE SUMMARYWe report a case of liver paragonimiasis that was misdiagnosed as an abscess. Thepatient presented with fatigue and poor appetite for 2 months, and was diagnosedwith liver abscess in the local hospital. After 6 months, the patient visited ourhospital because of recurrent abdominal pain and was diagnosed with liverparagonimiasis based on epidemiological history, clinical presentations, andlaboratory findings. He was treated with praziquantel (25 mg/kg) three times aday for 3 days;however, the symptoms still presented after treatment. He wastreated with oral praziquantel and albendazole for one further course. Follow-upsuggested that the treatment was effective and the symptoms improved.CONCLUSIONThe combination of albendazole and praziquantel may improve the therapeuticefficacy of paragonimiasis.展开更多
基金supported by a grant from the Major Project of Educational Commission of Hubei Province of China,No.D20152101
文摘Repetitive transcranial magnetic stimulation （rTMS） is a non-invasive treatment that can enhance the recovery of neurological function after stroke. Whether it can similarly promote the recovery of cognitive function after vascular dementia remains unknown, In this study, a rat model for vascular dementia was established by the two-vessel occlusion method. Two days after injury, 30 pulses of rTMS were ad- ministered to each cerebral hemisphere at a frequency of 0.5 Hz and a magnetic field intensity of 1,33 T. The Morris water maze test was used to evaluate learning and memory function. The Karnovsky-Roots method was performed to determine the density of cholinergic neurons in the hippocampal CA1 region. Immunohistochemical staining was used to determine the number of brain-derived neurotroph- ic factor （BDNF）-immunoreactive cells in the hippocampal CA1 region, rTMS treatment for 30 days significantly improved learning and memory function, increased acetylcholinesterase and choline acetyltransferase activity, increased the density of cholinergic neurons, and increased the number of BDNF-immunoreactive cells. These results indicate that rTMS can ameliorate learning and memory deficiencies in rats with vascular dementia, The mechanism through which this occurs might be related to the promotion of BDNF expression and subsequent restoration of cholinergic system activity in hippocampal CA 1 region.
文摘BACKGROUNDParagonimiasis is a typical food-borne zoonotic disease. Hosts acquire Paragonimusinfection through the ingestion of raw or undercooked crayfish and crab.The clinical manifestations of the disease are varied, and it is often misdiagnosedor missed. The diagnosis of paragonimiasis should be considered comprehensively.Praziquantel is the first choice for treatment, and albendazole can beused in combination with repeated courses in severe cases.CASE SUMMARYWe report a case of liver paragonimiasis that was misdiagnosed as an abscess. Thepatient presented with fatigue and poor appetite for 2 months, and was diagnosedwith liver abscess in the local hospital. After 6 months, the patient visited ourhospital because of recurrent abdominal pain and was diagnosed with liverparagonimiasis based on epidemiological history, clinical presentations, andlaboratory findings. He was treated with praziquantel (25 mg/kg) three times aday for 3 days;however, the symptoms still presented after treatment. He wastreated with oral praziquantel and albendazole for one further course. Follow-upsuggested that the treatment was effective and the symptoms improved.CONCLUSIONThe combination of albendazole and praziquantel may improve the therapeuticefficacy of paragonimiasis.
