Objective To find out an effective therapeutic method for and observe whether there is any synergistic action or not between fetal spinal cord transplantation (FST) and methylprednisolone (MP).Methods Fifty male adult SD rats were randomly divided into group A,B,C,D and E,10 in each group.Group A was treated with both large dosage of MP and FST,group B with MP only, grop C with FST only and group D without any treatment.Group E served as blank control.Fetal spinal cord was obtained from 14-day pregnant rats .Spinal cord Somatosensory evoked potential (SSEP) examination and behavior observation were performed in 24 hours and in 8 months after treatment By the way of reduced silver staining, the condition of nerve plerosis and regeneration could be observed.Results There were significant differences in the latent period and amplitude of N1 wave in SSEP between group A and group B,C and D (P＜0.05).No obvious behavior changes were found except partial sensory recovery in the left lower limbs in Group A.Histologically,more nerve fibers contacting with branches at injury area could be found in Group A than in Group B,C and D.Conclusion The combination of large dosage of MP and FST can produce synergistic effect in the recovery of the injured spinal cord.

No Abstract Available.
Animals ; Hantavirus* ; Indonesia* ; Murinae* ; Thailand*

In order to observe the damaged nerve successively, we used superficial magnetic stimulation motor evoked potential (MEP) in the pathological model of chronic compressed nerve of the cervical nerve roots of cats. We synthesized various change of the pathomorphology of the nerve damaged to different degrees, and discussed the relationship between the MEP and the pathomorphologic change of chronic compressed nerve roots. The results showed that the initial pathologic change of nerve with myelin was degeneration of myelin shealth. The MEP of the nerve also showed increased latency and dispersed wave forms. After that the axon of the demylinated nerve degenerated, splitted and had a peripheral Wallerian Degeneration. The MEP showed an increased latency along with decreased amplitude. The degree of the MEP's change accompanyed with pathologic change. So we believe that the magnetic compressed nerve. It has some reference value in figuring out the damage by analysing factors.

Objective:To analyze the value of low dose enteral nutrition (EN) in treatment of septic shock combined with acute gastrointestinal injury Ⅲ (AGI Ⅲ).Methods:Clinical data of septic shock patients combined with AGI Ⅲ admitted at our hospital were analyzed.Patients were divided into two groups according to the nutrition therapy they received:treatment group (EN,n =41) and control group (no EN,n =46).The mortality and ICU hospital stays were collected.The intestinal barrier,inflammatory cytokines,and oxidative stress were evaluated before and after EN treatment.Results:For patients in the treatment group,the dosages of EN ranged from 200 to 410 kcal/d,with the median dose of 350 kcal/d.No significant differences were found on death rates between the two groups (24.4％vs 32.6％,P =0.398).Patients in the treatment group had shorter ICU hospital stays than those of the control group (11.8 ± 3.7 vs 16.2 ± 5.3,P ＜0.01).After one week EN treatment,patients in the treatment group had lower levels of CRP,IL-6,TNF-α,diamine oxidase,endotoxin and D-lactate than those of the control group (P ＜ 0.05).Conclusion:For septic shock patients combined with AGI Ⅲ,low dose EN can improve the intestinal barrier function and systemic inflammatory responses.

Hantaviruses belong to the genus Hantavirus and Hantaan, Seoul, Puumala, Belgrade and Sin Nombre viruses are the etiolgic agents of two serious hantaviral diseases of humans. The rodent hosts and the specific etiologic agents of haemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS) are known and many reported cases occurred in Eurasia and Americas. Wild rodents trapped in 13 different areas of Korea from 1994 to 1998 were investigated against hantavirus infection. A total of 718 wild rodents and 10 species were trapped and found 630 (87.7%) of them were Apodemus agrarius. Indirect immunofluorescent antibody technique (IFAT) was performed for hantaviruses infections using different hantavirus antigens. Hantavirus antibodies were found in 68 (10.8%) out of 630 A. agrarius, 8 (42.1%) of 19 Rattus norvegicus. Among 68 lungs and other tissues of antibody positive A. agrarius, 5 (7.4%) were antigen positive. IFA titers of 5 positive A. agrarius sera showed higher titers against Puumala or Sin Nombre viruses than Hantaan virus. These results suggest that there may be are possibilities of existence of a noble hantavirus in Korean wild rodents.
Americas ; Animals ; Antibodies ; Fever ; Hantaan virus ; Hantavirus Infections* ; Hantavirus Pulmonary Syndrome ; Hantavirus* ; Hemorrhagic Fever with Renal Syndrome ; Humans ; Korea* ; Lung ; Murinae ; Rats ; Rodentia* ; Seoul ; Sin Nombre virus

OBJECTIVE: To provide the anatomic data for the correlated otologic microsurgery by the microdissection of temporal bone through facial recess approach. METHOD: Sixteen human temporal bones of eight adult cadaveric heads were dissected under surgical microscope through facial recess approach, and the relative anatomic structures were observed and measured, such as the bony entrance of facial recess approach, facial nerve, stapes, round window, round window niche, pyramidal eminence, cochleariform process, etc. The data were analyzed statistically. RESULT: The width of the bony entrance of facial recess approach was (2.94 +/- 0.32) mm, the height was (8.83 +/- 0.84) mm, the depth was (3.51 +/- 0.17) mm. The distances from stapes to tympanic segment of facial nerve, mastoid segment of facial nerve, round window, cochleariform process and anterior ligament of malleus were (1.38 +/- 0.21) mm, (6.94 +/- 0.47) mm, (3.60 +/- 0.55)mm, (2.23 +/- 0.33)mm, (4.93 +/- 0.61) mm, respectively. The distances from pyramidal eminence to tympanic segment of facial nerve, mastoid segment of facial nerve, round window, round window niche and cochleariform process were (1.05 +/- 0.09) mm, (5.63 +/- 0.41) mm, (3.01 +/- 0.34) mm, (3.29 +/- 0.44) mm, (4.13 +/- 0.51) mm, respectively. The distances from round window to cochleariform process and tympanic segment of facial nerve were (5.11 +/- 0.61) mm and (3.97 +/- 0.61) mm. The distances from round window niche to tympanic segment of facial nerve and mastoid segment of facial nerve were (4.13 +/- 0.38) mm and (7.28 +/- 0.29) mm. CONCLUSION The facial recess approach played an important role in modern otologic microsurgery. The position of anatomical structure was constant relatively, including short crus of incus, stapes, pyramidal eminence and cochleariform process, etc. These could be used as reference marks for otologic microsurgery.
Adult ; Ear, Middle ; anatomy & histology ; surgery ; Facial Nerve ; anatomy & histology ; surgery ; Humans ; Microsurgery ; Round Window, Ear ; anatomy & histology ; surgery ; Stapes ; anatomy & histology ; Temporal Bone ; anatomy & histology ; surgery

OBJECTIVE: To classify the external auditory canal cholesteatoma(EACC) by high-resolution temporal bone CT scans and the clinical findings of the patients, and to discuss the clinical and imaging characteristics and the surgical management of the extensive EACC. METHOD: A retrospective study was carried out among 56 patients (58 ears) with EACC and their clinical data were carefully analyzed. We classified EACC as the extensive type and the localized type. The operation strategy depended on the extent of lesion. All cases were followed up for 1 to 6 years after surgery. RESULT: There were 31 patients with localized EACC, 2 with no bone erosion and 29 (31 ears) with bone erosion within external auditory canal, and 25 patients with extensive EACC, 16 with bone erosion of intra temporal bone and 9 with bone erosion of extra temporal bone. Among all the 25 patients with the extensive type, the most common symptoms were otorrhea, otalgia and hearing loss, with 25, 23, 22 cases, respectively. The tympanic membrane (TM) was intact in 23 patients and perforated in two. The mastoid air cells in 23 patients were involved by the lesion, as well as tympanic antrum in eight, tympanic cavity in two, sigmoid sinus bony wall in five, mastoid segment of facial canal in four, and temporomandibular joint in two patients. Twenty patients underwent modified radical mastoidectomy, only one underwent reconstruction of ossicular chain, and four underwent canaloplasty. The average time of ear dry after surgery was 29 days. The postoperative hearing was improved by an average of 15 dB. No recurrence except for one patient was found during the follow-up period. CONCLUSION It was of important clinical significance to classify EACC as the extensive type and the localized type. The extensive EACC was misdiagnosed easily because of the complicated clinical manifestations. The classification was helpful for the diagnosis and the selection of surgery strategy of EACC.
Adolescent ; Adult ; Aged ; Child ; Cholesteatoma ; classification ; diagnosis ; surgery ; Ear Canal ; Female ; Humans ; Male ; Middle Aged ; Otologic Surgical Procedures ; Retrospective Studies ; Young Adult

Objective To collect and sort out the literature on the clinical medication experience of traditional Chinese medicine(TCM)in the treatment of hepatic precancerous lesions,and to summarize the characteristics of the disease and the treatment ideas by analyzing the rules of its formula,in order to provide instructions for the treatment of precancerous lesions of hepatocellular carcinoma with TCM in terms of medication and experience addition and subtraction.Methods CNKI,VIP,WanFang Data,CBM,PubMed,Web of Science,EMBASE,Cochrane databases were systematically searched,the clinical research and personal experience literature of TCM in the treatment of hepatic precancerous lesions from the establishment of the databases to December 2023 was included,and the prescription information that met the inclusion criteria was extracted.Based on"Traditional Chinese Medicine data Miner(TCM Miner)",the medication database was established to analyze the frequency,properties and flavours of the drugs and meridian tropism.The cluster analysis were conducted by SPSS 25.0 statistical software,and the association rules were analyzed by using Apriori algorithm of SPSS Modeler 14.1,and the complex network analysis of high-frequency drugs was conducted by network module of SPSS Modeler.Results 34 researches including 34 formulas,110 drugs with 291 frequencies and 15 drug efficacy were included.Frequency analysis showed that the top eight types of frequently applied drugs were milkvetch root,largehead atractylodes rhizome,radix salviae miltiorrhhizae,hedyotis,carapax trionycis,zedorgy rhidoray,barbated skullcup herb,redix curcumae.The top three properties in the"four qi"were cold,warm and mild.The top three tastes of the"five flavors"were bitterness,sweetness and acridity.The top four in the frequency of meridian tropism were liver,spleen,kidney and lung.Apriori correlation analysis showed that the core drug pairs was"Hedyotis diffusa+Atractylodes".Complex network analysis showed that the core prescriptions were composed of Atractylodes,Radix Paeoniae Alba,Hedyotis diffusa,Poria cocos,Rhizoma Curcumae,Radix Curcumae Aromaticae,Trionycis Carapax,Radix Astragali,Sparganium stoloniferum,Salvia miltiorrhiza,Scutellaria barbata.Conclusion The TCM treatment of hepatic precancerous lesions should be based on tonifying spleen and nourishing liver,promoting blood circulation and detoxification,and combined with drugs that can promote qi-circulation,clear heat,remove blood-stasis,soften hard masses and resolve hard masses.