Objective To observe the therapeutic effect of Jade Maid Decoction(JMD),a Chinese herbal prescription for nourishing yin and clearing stomach-heat,on experimental periodontitis.Methods Twenty-four New Zealand rabbits were randomized into the model group,JMD group(oral use of JMD 23 g?kg-1?d-1),external application group(periodontal injection of minocycline hydrochloride ointment 50mg),and the combination group(oral use of JMD and periodontal injection of minocycline hydrochloride ointment).Experimental periodontitis was induced by ligation method.The treatment lasted 6 weeks.Gingival bleeding on probing(BOP) and probing pocket depth(PPD) were detected each week after medication,and pathological examination of the mandible was used to confirm the therapeutic effect after treatment.Results Gingival BOP was reduced to various degrees at different time in the three medication groups,and the effect was obvious in the combination group;PPD was also decreased to various degrees,and the difference of PPD between the three medication groups and the model group was significant after treatment for 4 weeks(P

OBJECTIVE To investigate the impact of mercuric sulfide nanoparticles(HgS-NP)on various neurotransmitter-type neurons in Caenorhabditis elegans(C.elegans).METHODS Wild-type N2 C.elegans,as well as the transgenic C.elegans expressing green fluorescent protein specifically in gamma-amino-butyric acid(GABA)-ergic,glutamatergic,dopaminergic,cholinergic,and serotoninergic neurons(strains EG1285,DA1240,BZ555,LX929,and GR1366),were synchronized at the L4 stage and treated with different concentrations of HgS-NP via solid exposure.① Five transgenic strains of C.elegans were exposed to HgS-NP 0(control group),250,500,and 1000 mg·L-1 for 72 h.Fluorescence microscopy was used to observe the expression of green fluorescence in different neurotransmitter-type neurons of the corresponding transgenic C.elegans.② Wild-type N2 C.elegans were exposed to HgS-NP 0(control group)and 1000 mg·L-1 for 72 h.Real-time quantitative PCR(RT-qPCR)was performed to detect the mRNA expression levels of 33 genes related to the GABAergic and glutamatergic neurotransmitter systems.RESULTS ① Compared with the control group of the same genotype,the EG1285 C.elegans exhibited soma shrinkage,dendrite fragmentation,and neuronal loss,with a significant decrease in the relative fluorescence intensity of GABAergic neurons(P<0.05)after exposure to different concentra-tions of HgS-NP.After exposure to HgS-NP 1000 mg·L-1,the DA1240 C.elegans showed a loss of glutamatergic neurons in the head region and a significant decrease in the relative fluorescence intensity(P<0.01).However,there were no significant changes in the morphology or relative fluorescence intensity of dopaminergic,cholinergic,and serotoninergic neurons in BZ555,LX929,and GR1366 C.elegans after exposure to HgS-NP,respectively.② Compared with the control group,wild-type N2 C.elegans exposed to HgS-NP 1000 mg·L-1 showed increased mRNA expression levels of glr-7 and glr-8,which encoded non-N-methyl-D-aspartate glutamate receptors(P<0.05),while the expression levels of the remaining 31 genes related to the GABAergic and glutamatergic neurotransmitter systems showed no significant changes.CONCLUSION Exposure to a high dose of HgS-NP for 72 h may potentially damage the GABAergic and glutamatergic neurons in C.elegans,but have no significant effect on dopaminergic,cholinergic or serotoninergic neurons.

Objective:In order to understand the changing trends of gastric cancer incidence and mortality in early-onset and late-onset in China from 2000 to 2019.Methods:The Global Burden of Disease research data was collected, and Excel and R 4.2.1 softwares were used to examine the incidence rate, mortality rate, and disability-adjusted life years (DALY) of Chinese people from 2000 to 2019, with a focus on gender, age, and year.Results:In 2019, the crude incidence rates were 7.06/100 000 (95% UI: 6.63/100 000-7.59/100 000) and 114.52/100 000 (95% UI: 108.79/100 000-121.63/100 000) for early- and late-onset gastric cancer, respectively. The crude mortality rate for early-onset gastric cancer was 3.29/100 000 (95% UI: 3.11/100 000- 3.50/100 000), while the crude mortality rate for late-onset gastric cancer was 81.88/100 000 (95% UI: 78.15/100 000-86.04/100 000). Additionally, the crude DALY rates for these two types of gastric cancer were 156.48/100 000 (95% UI: 148.82/100 000-165.84/100 000) and 1 750.13/100 000 (95% UI: 1 661.21/100 000-1 852.99/100 000). The standardized incidence of early-onset gastric cancer decreased from 5.49/100 000 in 2000 to 4.76/100 000 in 2019, and that of late-onset gastric cancer decreased from 143.45/100 000 in 2000 to 123.02/100 000 in 2019.The standardized mortality rate of early-onset gastric cancer decreased from 4.16/100 000 in 2000 to 2.18/100 000 in 2019, and that of late-onset gastric cancer decreased from 140.82/100 000 in 2000 to 91.49/100 000 in 2019. The standardized DALY rate for early-onset gastric cancer in 2019 was 105.87/100 000 (95% UI: 87.98/100 000 -125.60/100 000), lower than 198.84/100 000 (95% UI: 179.47/100 000- 219.83/100 000) in 2000. The standardized DALY rate for late onset gastric cancer in 2019 was 1 821.11/100 000 (95% UI: 1 509.42/100 000-2 158.53/100 000), lower than 2 932.52/100 000 (95% UI: 2 665.92/100 000-3 252.60/100 000) in 2000. Conclusions:The standardized mortality rate of early-onset gastric cancer in China showed a decreasing trend from 2000 to 2019. The standardized mortality rate of late onset gastric cancer showed a trend of first increasing and then decreasing. Notably, the incidence, mortality, and DALY of late-onset gastric cancer were significantly higher than those of early-onset gastric cancer during this period. Additionally, male incidence, mortality, and crude DALY rates were higher than female.

OBJECTIVETo study characteristics of energy metabolism in the skeletal muscle of rats with postoperative fatigue syndrome (POFS) and the interventional effect of ginsenoside Rb1.

METHODWe chose resection of 70% of the "middle" small intestine as the rat model for POFS. Ninety-six adult male SPF SD rats were randomly divided into the control group, the model group, and the ginsenoside Rb1-treated group by body weight. And then, each group was further randomly divided into four subgroups, according to different postoperative investigated time points, such as postoperative day 1, postoperative day 3, postoperative day 7 and postoperative day 10. So the animals were divided into twelve subgroups (n = 8 in each subgroup). Rats of the control group and the model group were injected intraperitoneally with saline at the dose of 10 mL x kg(-1) one hour before the operation and once a day during the postoperative days. Rats of the ginsenoside Rb1-treated group were administered 10 mg x kg(-1) ginsenoside Rb1 by the same method. The skeletal muscles were sampled on postoperative day 1, 3, 7 and 10. The contents of ATP, ADP, AMP in skeletal muscles were determined by HPLC, and the activities of Na(+)-K(+)-ATPase and Ca(2+)-ATPase were investigated by colorimetry.

RESULTCompared with the control group, the content of ATP in skeletal muscle of rats of the model group decreased significantly on postoperative day 3 (P < 0.05), while the content of ADP significantly increased on postoperative day 7 and 10 (P < 0.05). The activity of Na(+)-K(+)-AT-Pase decreased on postoperative day 3 and 7 (P < 0.05), and the activity of Ca(2+)-ATPase decreased on postoperative day 7. After supplement of ginsenoside Rb1, on the investigated time points, all the negative changes of the indicators discovered above were significantly adjusted (P < 0.05) in rats of the ginsenoside Rb1-treated group, while no significant differences were investigated.

CONCLUSIONDuring a certain period of postoperative time, the activity of energy metabolism is depressed in the skeletal muscle of rats with POFS, but it can be improved by supplement of ginsenoside Rb1.

Animals ; Calcium-Transporting ATPases ; physiology ; Energy Metabolism ; drug effects ; Fatigue ; drug therapy ; metabolism ; Ginsenosides ; pharmacology ; therapeutic use ; Male ; Muscle, Skeletal ; metabolism ; Postoperative Complications ; drug therapy ; metabolism ; Rats ; Rats, Sprague-Dawley ; Sodium-Potassium-Exchanging ATPase ; physiology ; Syndrome