China ; Humans ; Occupational Health Services ; manpower

Ultrasound contrast agent microbubbles combined with low frequency ultrasound named as low-frequency ultrasound-targeted microbubble destruction technology has become an effective and non-invasive anti-tumor therapy for deep tumors.It can enhance the efficacies of chemotherapy,gene therapy,immunotherapy,and anti-angiogenic therapy by improving cell membrane permeability and destroying tumor neovasculature.It can be applied to sonodynamic therapy and realize multimodal synergistic therapy on the basis of nanoparticles,which increases the anti-tumor efficiency and offers a promising target therapy for tumors.
Contrast Media ; Genetic Therapy ; Humans ; Microbubbles ; Neoplasms ; Ultrasonography

Complement Factor H ; genetics ; Hemolytic-Uremic Syndrome ; genetics ; Humans

Torpor refers to a state in which the metabolic activity in the body of the living animal is greatly reduced during the period of reduced food supply, which is manifested as a substantial decrease in body temperature, metabolic level, and exercise level. Mammals have a strict body temperature regulation system to maintain a constant body temperature. When the energy supply is insufficient for a long time, some mammals will enter a hibernation state. Torpor is very similar to the hibernation state. The research on the mechanism of torpor state is of great significance in aerospace, military medicine and other fields. This review summarizes the specific mechanisms regulating the occurrence of torpor from four aspects: adenylate cyclase activating polypeptide (adcyap) neurons, leptin, pyroglutamylated RFamide peptide (QRFP) neurons, and sympathetic nervous system, aiming to provide ideas for further research on the mechanism of torpor.

Objective To investigate the current status of coal-burning endemic fluorosis and the fluoride content in foods and drinking water in Hongya County,Sichuan Province.Methods Dental fluorosis and urinary fluoride were suveyed in children of 8～12 years old in two schools which repectively located in Gaomiao and Wawushan Town.The adults above 20 years old underwent clinical examination.At the same time,fifty adults above 20 years old in Garden Village were chosen to take forearm and calf X-ray films to find out the evidence of skeletal fluorosis.The content of fluoride in food such as bacon,corn,dry capsicum in Sanxing Village in Gaomiao Town and Futian Village in Wawushan Town as well as drinking water in five families in Sanxing Village were determined.Results The dental fluorosis rate of children was 40.76%(161/395),the dental fluorosis index was 0.86 in Gaomiao Town.The dental fluorosis rate of children was 14.36%(82/571),the dental fluorosis index was 0.31 in Wawushan Town.The medium value of the urine fluoride was 0.81 mg/L.ranged 0.16～3.89 mg/L.The positive rate oi the clinical examination of skeletal fluorosis was 5.27%(27/512),the X-rays detective rate was 4.00%(2/50).The medium value in bacon,corn,dry capsicum were 6.00,0.64,1.49 mg/kg.The averaged content of the fluoride in drinking water(0.14±0.06)mg/L of local household was within the eligible limitation.Conclusions It is currently a mild endemic disease in Hongya Country,its incidence is reduced apparently,pathogenetic environmental fluoride content is reduced.The main source of fluoride is from the preserved ham contaminated with fluoride,which is epidemiologically significant in endemic area of Hongya County.Defluoriding countermeasures should be taken in the endemic areas.

Objective To investigate the presence of occult brain tissue damage in patients with relapsing neuromyelitis optica(RNMO)and its possible mechanism by using diffusion tensor imaging (DTI).Methods DTI scans were performed in 16 patients with RNMO and 16 sex-and age-matched healthy controls.Histogram analysis of mean diffusivity (MD)and fractional anisotropy (FA)was performed in brain tissue (BT),white matter (WM)and gray matter (GM)to detect the presence of occult brain tissue damage in RNMO patients.Region of interest(ROI )analysis of MD and FA was also performed in 6 dedicated regions with or without direct connection with spinal cord or optic nerve to determine the relationship between occult brain tissue damage and the damage of spinal cord and optic nerve.Results Patients with RNMO had a significantly higher average MD of the BT[RNMO(0.95?0.02)? 10~(-3)mm~2/s,controls (0.91?0.03)?10~(-3)mm~2/s,t = 3.940,P

OBJECTIVETo investigate the effect of Liuwei Dihuang Soft Capsule(LDSC) and Ginkgo Leaf Tablet (GLT) on serum regulated upon activation, normal T cell expressed and secreted (RANTES) in the patients with diabetes mellitus type 2 (DM2).

METHODSForty patients with early stage DM2 were randomly assigned to two groups, 20 in each group. Based on the conventional treatment with hypoglycemic agents, patients in the treated group were treated with LDSC plus GLT additionally, and those in the placebo group with placebo for 6 months, respectively. The levels of serum RANTES, blood glucose, blood lipids and glycosylated hemoglobin, as well as micro-content of albumin in urine were measured before and after treatment.

RESULTSIn the treated group, the serum level of RANTES decreased significantly after treatment, and it was significantly lower as compared with that in the control group (P < 0.05).

CONCLUSIONSLDSC and GLT can decrease serum RANTES level in patients with DM2. They play a preventive and therapeutic role on diabetic complications by their anti-inflammatory effect.

Aged ; Capsules ; Chemokine CCL5 ; blood ; Diabetes Mellitus, Type 2 ; blood ; drug therapy ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Ginkgo biloba ; chemistry ; Humans ; Hypoglycemic Agents ; therapeutic use ; Male ; Middle Aged ; Phytotherapy ; Plant Leaves ; chemistry ; Tablets ; Treatment Outcome

OBJECTIVETo observe the effect of Kanli Granule (KG) on myocardial mechanics in pressure overload induced diastolic heart failure (DHF) rats.

METHODSTotally 60 male Wistar rats were divided into the sham-operation group, the model group, the KG group, and the Valsartan group according to random digit table, 15 in each group. The pressure overload induced DHF model was established in all groups except the sham-operation group using abdominal aortic constriction surgery. Totally 7 rats died after modeling (with the mortality of 10. 67%) , and the rest 53 finished the following test. Rats in the KG group were administered with KG extract (calculated as 6. 75 g crude drug/kg) by gastrogavage. Rats in the Valsartan group were administered with Valsartan (7.2 µg/g) by gastrogavage. Equal volume of double distilled water was administered to rats in the model group and the sham-operation group by gastrogavage. All rats were intervened for 32 weeks. The response of isolated heart papillary muscle tonus to isoprenaline (ISO) and adenylate cyclase (Forskolin) was respectively observed. The enhancement phenomenon after resting development force (DF) of isolated heart papillary muscle tonus, and changes of DF in different Ca²⁺ concentrations were observed.

RESULTS(1) In the ISO response test: Compared with the sham-operation group, the amplifications of DF, ±df/dt, -df/dt were obviously elevated in the model group (P < 0.05). Compared with the model group, the amplifications of DF and ±df/dt were obviously lowered in the KG group (P < 0.01), and the amplification of ±df/dt was also reduced in the Valsartan group (P < 0.01). (2) In the Forskolin response test: Compared with the sham-operation group, the amplifications of DF and ±df/dt obviously increased in the model group (P < 0.05). Compared with the model group, the amplifications of DF and ±df/dt were obviously reduced in the KG group (P < 0.01), and the amplification of DF was also reduced in the Valsartan group (P < 0.05). (3) In post-resting DF enhancement test: Compared with the sham-operation group, the amplification of DF showed gradually decreasing tendency along with prolonged resting time in the model group, and they were obviously lowered at all time points (P < 0.05). Compared with the model group, the amplification of DF was gradually increasing along with prolonged resting time in the KG group. The amplification of DF at post-resting 240 s was obviously larger in the KG group than in the model group (P < 0.05). The amplification of post-resting DF still showed gradually decreasing tendency along with prolonged resting time in the Valsartan group, with increased amplifications of DF at post-resting 60 s and 120 s (P < 0. 05) (4) The amplifications of DF in different Ca²⁺ concentrations: Compared with the sham-operation group, the amplifications of DF were significantly elevated in different Ca²⁺ concentrations (1.75, 3.5, 7.0 mmol/L ) (P < 0.05, P < 0.01). Compared with the model group, there was no statistical difference in amplification of DF in different Ca²⁺ concentrations in the KG group (P > 0.05). The amplifications of DF in different Ca²⁺ concentrations were significantly reduced in the Valsartan group (P < 0.05).

CONCLUSIONSThe ISO response and the Forskolin response were enhanced in isolated heart papillary muscle tonus of pressure overload induced DHF rats; enhanced post-resting DF was reduced; DF in different supra-physiologic levels of Ca²⁺ was still enhanced. KG could significantly improve excessive enhancement of pressure overload induced DHF rats in ISO response and Forskolin response, and improve enhancement of post-resting myocardium.

Animals ; Colforsin ; pharmacology ; Drugs, Chinese Herbal ; pharmacology ; Heart ; drug effects ; physiopathology ; Heart Failure, Diastolic ; drug therapy ; Isoproterenol ; pharmacology ; Male ; Random Allocation ; Rats ; Rats, Wistar

Objective To investigate the effect of Ulinastatin on the delivery of cytokines in patients with septic shock.Methods It was a prospective and controlled clinical study.Seventy-eight patients with septic shock were randomly divided into control group and treatment group and thirty-nine in every group.Patients in treatment group received Ulinastatin 200 000 units intravenous everyday for 3 days,while those in control group received equal volume of normal saline as placebo.At different time points (at 24 th,48 th,72 th hour after start of treatment),the levels of tumor necrosis factor-alpha (TNF-?),interleukin-1 (IL-1),interleukin-6 (IL-6 ),interleukin-8 (IL-8) and superoxide dismutase (SOD) in serum were assayed.Results In comparison with control group,the levels of TNF-?,IL-1,IL-6,IL- 8 of treatment group decreased markedly (P＜0.05,P＜0.01) at different time points,whereas the level of SOD was higher markedly (P＜0.05,P＜0.01) at various time points.Conclusion Ulinastatin has protective effect on patients with septic shock through decreasing the levels of TNF-?,IL-1,IL-6,IL-8 and increasing in the level of SOD.

Patients with early cataract may have normal visual acuity ( VA ) but complain that they have problems in driving at night, like seeing things through a veil. This phenomenon is defined as disability glare which maybe caused by growing stray light. Patients with intraocular lens following cataract surgery may complain about glare, halos and shadows in visual field, which are also resulted from dysphotopia. Disability glare is the VA loss due to disturbing luminance in visual field. ln other words, it's the retinal contrast sensitivity reduction because of the straylight. This article contains the consensus and new progress of disability glare. lt provides solutions according to its effect factors and offers clues for further study.