Objective:To investigate the specific method, efficacy and safety of intrathecal baclofen (ITB) in the treatment of moderate and severe spasticity.Methods:The clinical features, response to ITB trial, clinical outcomes and treatment-related complications after baclofen pump implantation surgery were retrospectively analyzed in patients with moderate to severe spasticity who received ITB treatment in Hong Kong University Shenzhen Hospital from August 2022 to August 2023.Results:The study included 22 patients with moderate to severe spasticity, of whom 18 patients (81.8%) were effective in ITB trial. For these patients with effective trial, the lowest mean Modified Ashworth Scale (MAS) score of lower extremity muscle groups after ITB bolus injection was decreased significantly compared with the baseline mean value before injection (1.29±0.81 vs 3.31±1.18 , t=11.364, P<0.001), and the M/H amplitude ratio of soleus H-reflex at 4 hours after ITB bolus injection was significantly higher than the baseline value (9.61±4.66 vs 3.83±2.69, t=7.780, P<0.001). Among the 18 patients with effective ITB trial, 10 patients received baclofen pump implantation surgery with the informed consent of the patients or their guardians. Compared with the 8 patients without surgery, the baseline mean MAS score of lower extremity muscle groups of the 10 patients who received surgery was higher (3.71±1.06 vs 2.83±1.16, F=5.645, P<0.05), the maximum reduction of mean MAS score of lower extremity muscle groups of the 10 patients who received surgery was greater (2.61±0.99 vs 1.30±0.64, F=20.696, P<0.001). In 10 patients who received baclofen pump implantation surgery, the mean MAS score of lower limb muscle groups was significantly decreased in the first and sixth months after surgery compared with the baseline mean value before surgery (1.64±0.91, 1.16±0.89 and 3.71±1.06, F=39.946, P<0.001). Among them, 2 patients were followed up to 12 months after surgery, 2 patients were followed up to 18 months after surgery, and the mean MAS score of their lower limb muscle groups showed continuous improvement, and 1 patient with cerebral palsy combined with lower urinary tract hyperactive syndrome also showed significant improvement of urgent urinary incontinence after surgery. Up to the last follow-up, the daily dose of baclofen in 10 patients receiving baclofen pump implantation was (143.60±96.24) μg, and no treatment-related complications occurred. Conclusions:ITB can effectively relieve spasticity symptoms and other related neurological dysfunction in patients with moderate and severe spasticity, and the efficacy can be maintained for a long time, and treatment-related complications are rare. Preoperative ITB trial is helpful to screen out patients more suitable for baclofen pump implantation. Patients with higher grade of spasticity at baseline and better efficacy of ITB trial are more suitable for baclofen pump implantation. The soleus H reflex can effectively reflect the change of stretch reflex of lower limb muscle groups in patients with spasticity treated by ITB, and can be used to evaluate the treatment effect of ITB.

BackgroundThe incidence of delirium in critically ill psychiatric patients is high， and there are many factors affecting delirium occurrence. At present， epidemiological studies on delirium among critically ill patients in psychiatric hospitals are limited. ObjectiveTo explore the risk factors for delirium in critically ill patients in a psychiatric hospital， so as to guide the clinical management of delirium in psychiatric hospitals. MethodsThis retrospective study included 427 critically ill patients who were admitted to Shenzhen Kangning Hospital from January 1， 2019 to May 31， 2021. The delirium situation， gender， age， pre-admission course of illness （duration from the onset of acute mental state changes to in-patient registration at a psychiatric hospital）， history of mental illness， history of cognitive dysfunction， history of using psychoactive substances， history of using sedative and hypnotic drugs， number of combined chronic diseases， number of combined drugs and type of disease were examined as potential risk factors for delirium. Single Logistic regression was used to analyze the potential risk factors for delirium， and the potential risk factors were incorporated into the multi-factor Logistic regression analysis model so as to gradually screen out the risk factors for delirium in critically ill psychiatric patients. ResultsDelirium was present in 33.49% （143/427） of critically ill patients. Multi-factor Logistic regression analysis demonstrated that the presence of delirium was associated with mental and behavioral disorders caused by psychoactive substances （OR=8.949， P<0.01）， absent history of mental illness （OR=4.202， P<0.01）， number of combined chronic diseases （OR=1.249， P<0.01）， age （OR=1.031， P<0.01） and pre-admission course of illness （OR=0.942， P<0.01） . ConclusionDelirium was present in nearly 1/3 critically ill patients in the psychiatric hospital. The risk factors for delirium included short course of illness before admission， age， more combined chronic diseases， absent history of mental illness， mental and behavioral disorders caused by psychoactive substances. ［Funded by Shenzhen Fund for Guangdong Provincial High-level Clinical Key Specialties （number， SZGSP013）］

Objective: To explore the epidemiological characteristic of a COVID-19 outbreak caused by 2019-nCoV Omicron variant BF.7 and other provinces imported in Shenzhen and analyze transmission chains and characteristics. Methods: Field epidemiological survey was conducted to identify the transmission chain, analyze the generation relationship among the cases. The 2019-nCoV nucleic acid positive samples were used for gene sequencing. Results: From 8 to 23 October, 2022, a total of 196 cases of COVID-19 were reported in Shenzhen, all the cases had epidemiological links. In the cases, 100 were men and 96 were women, with a median of age, M (Q₁, Q₃) was 33(25, 46) years. The outbreak was caused by traverlers initial cases infected with 2019-nCoV who returned to Shenzhen after traveling outside of Guangdong Province.There were four transmission chains, including the transmission in place of residence and neighbourhood, affecting 8 persons, transmission in social activity in the evening on 7 October, affecting 65 persons, transmission in work place on 8 October, affecting 48 persons, and transmission in a building near the work place, affecting 74 persons. The median of the incubation period of the infection, M (Q₁, Q₃) was 1.44 (1.11, 2.17) days. The incubation period of indoor exposure less than that of the outdoor exposure, M (Q₁, Q₃) was 1.38 (1.06, 1.84) and 1.95 (1.22, 2.99) days, respcetively (Wald χ²=10.27, P=0.001). With the increase of case generation, the number and probability of gene mutation increased. In the same transmission chain, the proportion of having 1-3 mutation sites was high in the cases in the first generation. Conclusions: The transmission chains were clear in this epidemic. The incubation period of Omicron variant BF.7 infection was shorter, the transmission speed was faster, and the gene mutation rate was higher. It is necessary to conduct prompt response and strict disease control when epidemic occurs.
Male ; Humans ; Female ; SARS-CoV-2 ; COVID-19/epidemiology* ; Disease Outbreaks ; Epidemics ; China/epidemiology*

OBJECTIVE: To investigate the enhancement of macrophage chemotaxis in patients with knee osteoarthritis (KOA) and its correlation with the disease severity. METHODS: Eighty patients with KOA admitted from July 2019 to June 2022 were enrolled as the observation group and divided into 29 cases of moderate group, 30 cases of severe group and 21 cases of extremely severe group. At the same time, 30 healthy subjects were included as the control group. The gene expressions of NF-κB, CXC chemokine receptor 7 (CXCR7) and CXC chemokine ligand 12 (CXCL12) in macrophages of each group were analyzed. Visual analogue scale(VAS) was used to evaluate the degree of joint pain. Joint function was evaluated by knee Joint Society Scoring system(KSS). Finally, data analysis was carried out. RESULTS: The expression levels of NF-κB, CXCR7 and CXCL12 in moderate group, severe group and extreme recombination group were higher than those in control group. The VAS, the expression of NF-κB, CXCR7 and CXCL12 in the severe group and the extreme recombination group were higher than those in the moderate group, whereas KSS was lower than that in the moderate group. The VAS, expression levels of NF-κB, CXCR7 and CXCL12 in the extremely severe group were higher than those in the severe group, and KSS was lower than that in the severe group (all P<0.01). The expression levels of NF-κB, CXCR7 and CXCL12 in macrophages were positively correlated with VAS score, but negatively correlated with KSS(all P<0.01). The expression levels of NF-κB, CXCR7 and CXCL12 in macrophages were positively correlated with the severity of disease. After excluding the influence of traditional factors (gender, age and disease duration), multiple linear regression analysis further showed that the expression levels of NF-κB, CXCR7 and CXCL12 were still positively correlated with the severity of disease(all P<0.01). CONCLUSION The chemotaxis of macrophages in patients with KOA increased with the aggravation of the disease, and was related to the degree of pain and function impairment.
Humans ; Osteoarthritis, Knee/genetics* ; Chemotaxis/genetics* ; NF-kappa B/metabolism* ; Macrophages/metabolism* ; Receptors, CXCR/metabolism* ; Patient Acuity

Objective To analyze the abnormality of radiation damage sensitive indices in radiation workers after operation of a third-generation nuclear power plant in Guangdong Province, China, and to provide a basis for promoting the occupational health management of radiation workers. Methods A two-way cohort study (2019—2021) was conducted to compare the radiation sensitive indices of occupational health examination in the exposed group (453 subjects) and the control group (160 subjects). Results In 2021, the free triiodothyronine (FT3) level of the exposed group was significantly higher than that of the control group [(5.57 ± 0.56) pmol/L vs (5.42 ± 0.60) pmol/L, t = 0.59, P < 0.05]. From 2019 to 2021, the exposed group showed significant changes in the average levels of platelet, hemoglobin, FT3, free thyroxine (FT4), and thyroid-stimulating hormone (P < 0.05); FT3 and FT4 first increased and then decreased, while TSH decreased continuously. Conclusion Long-term exposure to low-dose ionizing radiation from nuclear power plants can affect the platelet, hemoglobin, FT3, FT4, and thyroid-stimulating hormone of radiation workers, and the effect is relatively prominent on thyroid function by causing a tendency to hypothyroidism.

Objective To investigate epidemiological characteristics of measles cases and the influencing factors of transmission of measles among floating children in Shenzhen. Methods Descriptive study was conducted in data which were collected from the report system of statutory infectious diseases from 2016 to 2018 in Shenzhen. Case-control study was conducted between 89 cases and relative controls. Results A total of 108 measles cases in floating children were reported from 2016 to 2018, and the incidence trend showed a year-on-year decline( 2trend=68.35, P<0.001). Analysis showed that nosocomial exposure in 7 to 21 days ago(OR=7.80, 95% CI:3.51-17.35, P<0.001), having been to the crowded places(OR=3.37, 95% CI:1.52-7.47, P=0.002), having contact history of fever-rash patients(OR=4.57, 95% CI:1.41-14.84, P=0.007) were influencing factors of transmission of measles among floating children, and immunization at the prescribed time(OR=0.12, 95% CI:0.04-0.32, P<0.001) was a protective factor for measles. Conclusions Vaccination must be strengthened for floating children. Medical institutions should avoid becoming a key place for measles transmission, and need to strengthen health education.

OBJECTIVE: To investigate the effect of n-hexane on the level of sex hormones and expression of estrogen receptor(ER) in rats and the protective effect of Lyciumbarbarum polysaccharide(LBP) on n-hexane-induced reproductive toxicity. METHODS: Based on factorial design model of 4×2, specific pathogen free adult female SD rats were divided into control group and low-, medium-and high-n-hexane exposure groups, and each group was divided into non-LBP intervention and LBP intervention sub-group. There were 8 subgroups with 6 rats in each group. On the first day, the rats in the 4 groups were given intraperitoneal injection of n-hexane at 0, 675, 1 350 and 2 700 mg/kg body weight, respectively. On day 2-4, the rats in the non-LBP intervention subgroup were given intragastric administration of 0.9% sodium chloride solution, and the rats in the LBP intervention subgroup were given intragastric administration of LBP at 50 mg/kg body weight once a day. On the fifth day, all animals were sacrificed, and the levels of follicle stimulating hormone(FSH), luteinizing hormone(LH), estradiol, progesterone were detected by enzyme linked immunosorbent assay. The mRNA expression of Erα, Erβ and G protein coupled estrogen receptor 1(Gper1) was detected by real time fluorescence polymerase chain reaction, and the expression of ERα, ERβ and GPER1 protein was detected by Western blotting. RESULTS: i) In the absence of LBP intervention(i.e. simple n-hexane exposure), there was no significant difference in the level of serum FSH, LH, estradiol and progesterone in the 4 groups(P>0.05). The relative expression of Erβ mRNA in ovary of low dose group decreased, while the relative expression of proteins of ERα and GPER1 increased(P<0.05) when compared with the control group. The relative expression of Erα mRNA and GPER1 protein in the ovary of medium-and high-dose groups increased(P<0.05), while the relative expression of Erβ, Gper1 mRNA and ERβ protein decreased(P<0.05). The relative expression of ERα protein in ovary of high-dose group increased(P<0.05). ii) At the same dose of n-hexane exposure, the relative expression of Erα mRNA in ovary of rats in low dose group increased(P<0.05), while the relative expression of ERβ and GPER1 protein decreased in LBP intervention group compared with the no LBP intervention group(P<0.05). The relative expression of ERα and GPER1 protein in ovary of medium dose group increased(P<0.05), while the relative expression of Gper1 mRNA and GPER1 protein in ovary of high dose group decreased in LBP intervention group compared with the no LBP intervention group(P<0.05). CONCLUSION: n-Hexane can up-regulate the expression of ERα and GPER1 in rat ovary, but has no significant effect on female endocrine system. LBP may play a protective role in female reproductive system by up-regulating the expression of ERα and GPER1.

OBJECTIVE:To systematically review the efficacy of Compound danshen dripping pill or Compound danshen tablets for chronic hepatitis B complicated with hepatic fibrosis,and to provide evidence-based reference for clinical treatment.METHODS:Retrieved from PubMed,Cochrane Library,EMBase,Medline,Wanfang database,VIP,CJFD and CBM database,randomized controlled trials (RCTs) about Compound danshen dripping pills or tablets combined with entecavir(trial group) vs.entecavir alone (control group) for chronic hepatitis B complicated with hepatic fibrosis were collected.Meta-analysis was performed by using Rev Man 5.3 statistical software after data extraction and quality evaluation according to Cochrane systematic evaluation manual 5.1.0.RESULTS:A total of 9 RCTs were enrolled,including 714 patients.The results of Meta-analysis showed that ALT [SMD=-0.44,95％CI(-0.86,-0.01),P=0.04],HA [SMD=-1.53,95％CI(-2.28,-0.79),P＜0.001],LN [SMD=-0.93,95％CI(-1.41,-0.46),P＜0.001],CⅣ [SMD=-1.38,95％CI(-2.13,-0.63),P＜0.001] and PCⅢ [SMD=-1.42,95％ CI (-1.60,-1.23),P＜0.001] of trial group were significantly lower than those of control group;HBV-DNA negative rate [OR=3.73,95 ％ CI (2.14,6.49),P ＜ 0.001] was significantly higher than control group,with statistical significance.CONCLUSIONS:Compound danshen dripping pills or tablets can not only improve liver function and liver fibrosis in chronic hepatitis B patients with hepatic fibrosis,but also improve the antiviral effect.

p62/sequestosome-1(SQSTM1)is an important selective autophagy adaptor protein, which contains six functional regions:ubiquitin-binding domain,Keap1 interacting region,LC3 interaction region,tumor necrosis factor receptor-associated factor 6 binding domain,Phox and Bem1p and ZZ-type zinc finger domain. p62/SQSTM1 plays an important role in the removal of ubiquitin proteins. It also regulates the signaling pathway of nuclear factor erythroid 2 related factor 2-antioxidant respose element, NF-κB and the caspase-8 mediated apoptosis. The abnormal expression of p62/SQSTM 8 is closely related to neurodegenerative diseases (such as Huntington disease,Alzheimer disease,Parkinson disease),cancer,infective diseases,genetic diseases and chronic diseases. So far many researchers have shed light on the structure function and mechanism of p62/SQSTM1. This paper reviews the role of p62/SQSTM1 in the metabolism of proteins,the regulation of multiple signaling pathways and in the occurrence of diseases in order to provide a new theoretical basis for the treatment of autophagy targets.

Adult ; Aged ; Cauda Equina ; pathology ; physiopathology ; Female ; Humans ; Hypesthesia ; pathology ; Male ; Middle Aged ; Neuralgia ; pathology ; physiopathology ; Spinal Cord Injuries ; pathology ; physiopathology