Occupational chronic n-hexane poisoning incidents have been effectively curtailed in traditional printing and footwear industries, but its hazards are emerging in new industries. In recent years, two cluster incidents involving eight patients with occupational chronic n-hexane poisoning had occurred in Longgang District, Shenzhen City. Unlike the cleaning processes of electronic components in the electronics industry, these two incidents occurred during cleaning operations of non-electronic products. The rapid on-site detection tubes indicated the presence of n-hexane in the organic solvents used at the work site, and subsequent analysis of volatile components of the organic solvents further confirmed the involvement of n-hexane. Although the n-hexane exposure concentration of short term in the workplace air samples were below its occupational exposure limit, all eight cases were diagnosed as occupational chronic n-hexane poisoning, based on occupational exposure history, clinical manifestations, field investigations, and laboratory test results. These two poisoning incidents highlight that in air-conditioned or enclosed workshops with substandard occupational disease prevention facilities, the use of n-hexane containing organic solvents may result in occupational chronic n-hexane poisoning, even when the air monitoring results do not exceed the occupational exposure limits.

This paper summarized the clinical experience of professor XUAN Guowei in treating non-specific vulvitis from spleen. He believes that the core pathological mechanism of this condition lies in spleen deficiency and dampness accumulation； in the acute phase， spleen deficiency is taken as the root cause and damp-heat toxins accumulated in the vulva as the key； in the chronic phase， spleen deficiency and dampness accumulation is the main pathogenesis， accompanied by kidney deficiency. In clinical practice， the basic method of fortifying spleen and eliminating dampness is used， and self-made Jianpi Shenshi Formula （健脾渗湿方） is recommended as the basic prescription. During the acute phase， the medicinals of clearing heat and resolving toxins are supplemented， while during the chronic phase， medicinals aims at fortifying the spleen and consolidating the kidneys， boosting qi and nourishing yin are added. Simultaneously， there is an emphasis on integrated treatment combining internal and external treatment， and both Chinese and western medicine， and he highlights the importance of daily prevention and care for patients. Additionally， external used Xiaoyan Zhiyang Cream （消炎止痒霜） is created.

A portable washing device for eyes in on-site treatment was designed to be used in emergent event,so as to effectively respond to the needs of injury condition of on-site eye contamination,emergency rescue and other cure.The portable washing device for eyes designed in this study consists of an ophthalmic first-aid washing kit,an ocular electronic cleaning instrument and a washing needle for puncture in anterior chamber.The first-aid washing kit is equipped with a case and a protective cover,and the case is capable of storing spare first-aid medicines and instruments.It is possible to quickly check whether the medicines and instruments are all in readiness in the case through the transparently protective cover of the first-aid washing kit.The simple and convenient operation of this device can realize self-rescue operation of washing both eyes'conjunctival sacs at the same time by single person.This washing device not only can wash conjunctival sac on the contaminated ocular surface,but also can complete cleaning function for poison in the anterior chamber,and can real-timely monitor the acid-base value of the anterior chamber by using the measuring valve in the cavity of the ophthalmic electronic cleaning instrument.This washing device designed in this study is a highly practical toolkit specially designed for dealing with first-aid situations of eyes,which has many advantages include meeting the basic functions of emergency medical rescue for required nuclear and chemical injuries in daily training and support,emergency rescue and disaster relief,as well as defense and service support in wartime,and raising the emphasis of people to first-aid for eyes,and providing timely rescue for eyes.This device has a favorable value of conversion and promotion.

Humans ; Bacteremia ; Cross Infection ; Methicillin-Resistant Staphylococcus aureus ; Retrospective Studies ; Sepsis ; Staphylococcal Infections/epidemiology* ; Staphylococcus aureus ; Tertiary Care Centers ; China

OBJECTIVE To explore dianhydrogalactitol(DAG)-induced neurodevelopmental toxicity and mechanisms in zebrafish embryos and larvae. METHODS On the basis of general toxicity evaluation, zebrafish embryos were exposed to DAG in groups, and the effects of DAG on zebrafish nerves and behaviors were observed by means of autonomic locomotor response and light stimulation response of juvenile fish; the effects of DAG on zebrafish brain tissues were observed by means of histopathological examination of brain and acridine orange staining. The relative expression of dopamine neuron-related genes(DAT, TH, GCH1) and neural inhibition/promotion of apoptosis-related genes(Bax, Bcl-2) was determined by real-time fluorescence quantitative PCR in zebrafish larvae. RESULTS DAG inhibited the voluntary movement of zebrafish under the 20, 40, 75 mg·L-1, and the inhibition rate of voluntary movement showed obvious concentration correlation; DAG inhibited the reaction speed of zebrafish under the 20, 40, 75 mg·L-1, and the rate of decrease of reaction ability showed concentration correlation; the brain tissue became smaller, but the tissue structure of zebrafish did not show any significant abnormality in the various concentration groups of DAG; acridine orange staining was used to detect the apoptosis of the overall embryonic cells of zebrafish, and it was found that the administration of DAG inhibited the apoptosis of zebrafish. Acridine orange staining was used to detect apoptosis in the whole embryonic cells of zebrafish, and it was found that the green fluorescence in the head of the administered group was more obvious than that in the control group, indicating that apoptosis increased, and apoptosis increased in a dose-dependent manner, which was in accordance with the apparent observation; DAG in 75, 150, 300, 425, 600 mg·L-1 of the experimental condition could lead to a downward regulation of the relative expression of mRNA of the genes related to the zebrafish juvenile dopaminergic neuron, DAT, TH and GCH1. The Bax/Bcl-2 relative mRNA expression was up-regulated with increasing drug concentration. CONCLUSION The neurodevelopmental toxicity of DAG in zebrafish embryos and juveniles may be related to the inhibition of dopaminergic neurons.

Objective The resting-state functional magnetic resonance imaging (rs-fMRI) method was used to observe brain activity and its functional connection upon electroacupuncture stimulation at bilateral uterine acupoints (EX-CA1), as well as to investigate the mechanism of acupuncture in the treatment of gynecological diseases. Methods Twenty-two healthy female subjects were stimulated by electroacupuncture at bilateral uterine acupoints; rs-fMRI data of the brain were acquired and standardized. Degree centrality (DC), amplitude of low-frequency fluctuation (ALFF), and regional homogeneity (ReHo) were used to analyze local spontaneous brain activity via acupuncture. An independent component analysis was used to evaluate the functional connectivity of the resting brain networks after acupuncture. Results Analytical results showed that the neural activity intensity of the precuneus lobe, orbitofrontal cortex, lingual gyrus, amygdala, and posterior central gyrus decreased after acupuncture (voxel P < 0.001, cluster P < 0.05). Functional connectivity analysis revealed weakened auditory and right frontal-parietal networks (voxel P < 0.001, cluster P < 0.05), enhanced visual network (voxel P < 0.001, cluster P < 0.05), and synergistic auditory network and hypothalamic-pituitary system. Conclusion Significant differences in neural activity and functional connectivity in specific brain regions were observed after acupuncture intervention at uterine acupoints; the hypothalamic-pituitary system also showed various active states in different brain regions. It is speculated that the effective mechanism of acupuncture at uterine acupoints is related to the regulation of reproductive hormones, emotional changes, and somatic sensations. Therefore, the methods used in this study could clarify the neural mechanism of uterine-point acupuncture in the treatment of gynecological diseases and may serve as a reference for other studies pertaining to acupuncture.

OBJECTIVE:To systematically evaluate therapeutic efficacy and safety of pitavastatin comparison of atorvastatin in the treatment of primary hypedipemia in Chinese adults,and to provide evidence-based reference for clinic.METHODS:Retrieved from The Cochrane Library,PubMed,Chinese Journal Full-text Database,Wanfang database,and manually search Google Scholar,Baidu academic search engine,randomized controlled trials (RCTs) about pitavastatin (trial group) vs.atorvastatin (control group) in the treatment of primary hyperlipemia in Chinese adults were collected.After literature screening,data extraction,quality evaluation of included studies with modified Jadad scale,Meta-analysis of the levels of total cholesterol (TC),low density lipoprotein cholesterol (LDL-C),triglyceride (TG) and high-density lipoprotein cholesterol (HDL-C),response rate and the incidence of ADR was conducted by using Rev Man 5.3 statistical software.RESULTS:A total of 5 RCTs were included,involving 456 patients.Results of Meta-analysis showed that the decrease of TC level [MD=0.09,95％CI(0.01,0.16),P=0.03] in trial group was more better than control group,while the increase of HDL-C level [MD=0.08,95％ CI (0.01,0.14),P=0.03] and the decrease of the TG level [MD=-0.13,95％ CI (-0.20,-0.06),P=0.000 4] in trial group were worse than control group,with statistical significance.There was no statistical difference in the decrease of LDL-C[MD=-0.01,95％ CI (-0.13,0.10),P=0.84],response rate [OR=0.75,95％CI (0.15,3.66),P=0.72] or the incidence of ADR [OR=0.68,95 ％ CI (0.44,1.05),P=0.08] between 2 groups.CONCLUSIONS:Pitavastatin has better therapeutic efficacy in decreasing TC,but its therapeutic efficacy in decreasing LDL-C is similar to that of atorvastatin;its therapeutic efficacy in decreasing TG and increasing HDL-C is worse than that of atorvastatin.The safety of them is equivalent.

A 48-year-old middle aged male presented swelling lymph nodes and mass in neck for 5 years. Physical examination shows swollen mass in head and neck regions. The masses could be touched in bilateral parotids and neck with a little movement and moderate tenderness. The level of IgG was normal, but Eosinophi count was high. The function of heart liver and kidney was normal. The result of B-mode ultrasonography reveals bilateral parotids and subcutaneous near parotids were widely swollen and several swollen lymph nodes in neck. pathological examination displays features of a large number of lymph follicles hyperplasia, acidophilic granulocyte infiltration, capillary hyperplasia and fibrosis of different level. The disease were eventually diagnosed by pathological examination. Method of treatment includes glucocorticoid drug therapy, surgical resection and local radiotherapy. The last treatment of patients with Kimura's disease should be combined with the clinical manifestation of them to determine the individualized treatment, so as to improve the quality of life of patients.
Angiolymphoid Hyperplasia with Eosinophilia ; diagnosis ; pathology ; therapy ; Glucocorticoids ; therapeutic use ; Humans ; Lymph Nodes ; pathology ; Male ; Middle Aged ; Neck ; Parotid Gland ; pathology

Gui-Ling-Ji (GLJ), a classical prescription of traditional Chinese medicine (TCM), is the only existing compound of refining agent after 400-year testing. It is also one of 4 kinds of TCM secret varieties of the first batch after liberation. However, due to the lack of in-depth modern research, the magical effect of GLJ has not been fully understood and the clinical application has also been influenced. This article analyzed the situation and problems of secret varieties and GLJ. Experiences and strategies of the successful redevelopment of secret varieties were re-ferred to. Then, this paper proposed modern research thoughts of GLJ in order to realize the actively protection and the second development of the prescription.

OBJECTIVE: To analyze the epidemiological characteristics and related risk factors of allergic rhinitis in primary and middle school students in Changsha so that to provide the scientific basis for the disease control and intervention. METHOD: From June 2011 to April 2012, we randomly chose primary and middle school students aged from 10 to 17 years old in Changsha as our research objects. Through stratified sampling and cluster sampling, we carried out epidemiological investigation using questionnaire investigation, physical examination and skin prick test. After statistical analysis of the data,we explored the related risk factors. RESULT: (1) 7,023 copies of questionnaire were sent out and 6,407 copies of valid questionnaire were received in the stratified sampling survey. The prevalence of complaining about having got allergic rhinitis is 44.6% while the real rates is 20.5%; (2) 814 research objects were investigated in cluster sampling survey. The result of the incidence of allergic rhinitis is 26.3%, and the prevalence of allergic rhinitis is 17.2%. Analysis of Visual Analog Scale Questionnaire showed significant influence of allergic rhinitis on students character, memory, sleep quality, etc. CONCLUSION The prevalence of allergic rhinitis in primary and middle school students aged at 10-17 years old in Changsha is 17%-20%. The occurrence and development of allergic rhinitis is related to environment, genetic background and living habits. Allergic rhinitis influenced the students' character, memory and sleep quality significantly.
Adolescent ; Child ; China ; epidemiology ; Factor Analysis, Statistical ; Female ; Humans ; Incidence ; Male ; Prevalence ; Rhinitis, Allergic ; epidemiology ; Risk Factors ; Students ; Surveys and Questionnaires