The effects of strong intensive field training on oral health of military officers and soldiers / 实用口腔医学杂志

Objective: To examine oral health condition of the military officers and soldiers before and after military field training. Methods: After technical training,investigators went to a military field training place to carry out the oral health examination at the beginning and at the time of ending,respectively. Basic examinations included oral ulcer conditions,sulcus bleeding index(SBI) and plaque index(PLI). Results: 145 military officers and soldiers were consistent with inclusion criteria. Compared with those before field training,at the end of training the incidence of oral ulcer was significantly increased(P ＜ 0. 05); SBI of 16,26,36 and 46 was significantly higher(P ＜ 0. 05); PLI of 16,26,36 and 46 was significantly higher(P ＜ 0. 05). Conclusion: Oral health condition of military officers and soldiers may become poor during field training,corresponding oral health care should be emphasized.

The correlation of HMGB-1 with the halitosis and chronic periodontitis / 实用口腔医学杂志

Objective:To assess the correlation of high mobility group box 1 (HMGB-1) with Organoleptic rating(OR),dental plaque index(PLI) and halitosis with chronic periodontitis.Methods:Serum samples from 20 halitosis patients,20 chronic periodontitis patients with oral malodor and 8 healthy controls were collected.The level of HMGB-1 in the serum was detected by ELISA.The OR and PLI were estimated by organoleptic method and periodontal examination respectively.The data were analyzed with SPSS 17.0.Results:The levels of HMGB1 in the serum from 2 groups of patients was significantly higher than that of the controls(P ＜0.01).The level of HMGB-1 in the patients of halitosis with chronic periodontitis was significantly higher than that of the halitosis patients(P ＜ 0.01).There was no statistical difference of OR between the 2 groups of patients(P ＞ 0.05).The PLI of the chronic periodontitis patients with oral malodor was significantly higher than that of halitosis patients (P ＜ 0.01).The correlation of HMGB1 with OR and PLI of 2 groups of patients were positively correlated(P ＜ 0.05 and 0.01 respectively),the OR of halitosis patients showed no relevant(P ＞0.05).Conclusion:HMGB-1 may be one of the important factors that result in chronic periodontal inflammation and stubborn bad breath.

Alpha-type phospholipase A2 inhibitors from snake blood

Abstract It is of popular and scientific knowledge that toxins from snake venom (among them the PLA2 and myotoxins) are neutralized by various compounds, such as antibodies and proteins purified from animal blood. Venomous and nonvenomous snakes have PLA2 inhibitory proteins, called PLIs, in their blood serum. One hypothesis that could explain the presence of these PLIs in the serum of venomous snakes would be self-protection against the enzymes of their own venom, which eventually could reach the circulatory system. However, the presence of PLIs in non-venomous snakes suggests that their physiological role might not be restricted to protection against PLA2 toxins, but could be extended to other functions, as in the innate immune system and local regulation of PLA2s. The present study aimed to review the currently available literature on PLA2 and myotoxin alpha inhibitors present in snake plasma, thus helping to improve the research on these molecules. Furthermore, this review includes current information regarding the mechanism of action of these inhibitors in an attempt to better understand their application, and proposes the use of these molecules as new models in snakebite therapy. These molecules may help in the neutralization of different types of phospholipases A2 and myotoxins, complementing the conventional serum therapy.

Alpha-type phospholipase A2 inhibitors from snake blood

It is of popular and scientific knowledge that toxins from snake venom (among them the PLA2 and myotoxins) are neutralized by various compounds, such as antibodies and proteins purified from animal blood. Venomous and nonvenomous snakes have PLA2 inhibitory proteins, called PLIs, in their blood serum. One hypothesis that could explain the presence of these PLIs in the serum of venomous snakes would be self-protection against the enzymes of their own venom, which eventually could reach the circulatory system. However, the presence of PLIs in non-venomous snakes suggests that their physiological role might not be restricted to protection against PLA2 toxins, but could be extended to other functions, as in the innate immune system and local regulation of PLA2s. The present study aimed to review the currently available literature on PLA2 and myotoxin alpha inhibitors present in snake plasma, thus helping to improve the research on these molecules. Furthermore, this review includes current information regarding the mechanism of action of these inhibitors in an attempt to better understand their application, and proposes the use of these molecules as new models in snakebite therapy. These molecules may help in the neutralization of different types of phospholipases A2 and myotoxins, complementing the conventional serum therapy.(AU)

Practice Research on Hygiene Status of Anchorage Molar Wearing Band and Buccal / 医学研究杂志

Inspect the anchorage molars with band and the anchorage molars with buccal tube with dental plaque index and gum in- dex and then statistically process the objective data obtained.The results show that both wearing band and wearing buccal tube lead to dental plaque.The influence is less worse on the the anchorage molars with buccal tube.

Retrospective analysis of operative complications of lumbar disc herniation and lumbar canal stenosis / 中华骨科杂志

Objective To analyze retrospectively the causes of operative complications of lumbar disc herniation and lumbar canal stenosis as well as the treatment outcomes in order to reduce the surgical morbidities and to suggest preventive measures of complications.Methods The data of 2560cases with lum bar disc herniation and lumbar canal stenosis were reviewed from May1992to May2002.The total inci-dence rate of operative complications was5.23%.The incidence of surgical complications was3.75%in lum-bar disc hernia tion,4.70%in lumbar disc herniation combined with lateral recess stenosis,5.13%in lateral re-cess stenosis,8.97%in lumbar disc herniation combined with central stenosis,and7.93%in spinal cen tral stenosis.The complications were divided into intraoperative and postoperative groups.In the group of in tra-operative com plications,there were dural tear in38,mal-localization in19,nerve root injury in18,cau da e-quina in jury in4,and right external iliac artery disruption in1;in the group of postoperative complications,there were re currence of lumbar disc herniation in26,incisional hematoma in12,discitis in8,cere brospinal fluid cyst in3,acquired lumbar spondylolisthesis in2,cerebral infarction in2,and pulmonary em bolism in1.The com plications of 67cases were related with inappropriate usage of surgical instrument,53cases(79.1%)of whom were due to non-proper use with Kerrison rongeur,9cases with nerve dissector,2cases with nerve tractor and disc rongeur,and1case with periosteal elevator.Results In19cases with mal-localization prior to operation,15were corrected immediately during operation,the other4had to have second operation.In18cases complicating with nerve root injury,16had complete recovery,4cases with cauda equina injury had only incomplete recovery.The patient complicated with right external iliac artery disruption was recovered through prompt exploration and repairing.All patients with surgical complications were fully recovered by proper treatment except one died of pulmonary embolism.Conclusion If sufficient preven tive measures are applied in perioperative period,surgical complications may be reduced and managed effectively.