Objective To determine the change of maternal heart rate during the treatment with ritodrine for threatened premature labor. Methods110 cases of threatened premature labor were chosen. The ritodrine 100mg in 5% G. S 500mL was intravenously administered. The initial dosage was 6 drops/min, and the dose was increased until uterine contractions were inhibited. The treatment lasted for 40 to 48 hours after the uterine contractions were inhibited, then the oral tablets was recommended. If necessary, repeated treatment was given to some patients. The maternal heart rate was recorded in the whole process of treatment and was compared with the dosage administered. The labor time, fetal weight and Apgar′s score were also analyzed. Results The maternal basic heart rate was increased at first and then decreased. The increasing significantly increased( P ＜ 0.01 ) when the uterine contraction was inhibited. , but no difference showed among the groups of different gestational age( P＞0.05 ). The maternal heart rate was increased with the increasing of ritodrine( max. 140/min). labor time was significantly prolonged with the treatment of ritodrine( P＜0.01 ) ,while that of the idiopathic premature labor was prolonged most obviously ( P ＜ 0.05 ). Average fetal weight was (2.42 ± 0.49) kg, and the average Apgar′s score was≥8. Conclusion In the treatment of inhibiting uterine contractions,the increasing of maternal heart rate caused by ritodrine can be used as an indicator of therapeutic effect.

Objective To investigate the relationship between heat shock protein 70-2 (HSP70-2) gene polymorphism and diabetic nephropathy (DN) in patients with type 2 diabetes mellitus (T2DM). Methods Following the inclusion and exclusion criteria, a total of 677 subjects were enrolled in present study. They were either hospitalized or undergoing regular health check-up in the Department of Nephrology of PLA 152nd Hospital in Pingdingshan of Henan Province. Among them 226 patients were suffering rom diabetes mellitus and nephrosis (DN group), 221 patients with 2DM but without nephrosis (DN group), and 230 were normal controls (NC group). Data were collected by questionnaire, physical examination and laboratory examination, and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique was applied to detect the single nucleotide polymorphisms of HSP 70-2(+1267/G). Results The G/G genotype frequency of HSP70-2 was significantly higher in DN group than in DN and NC group (χ2 =8.123, P<0.01; χ2 =11.651, P<0.01); the G allele frequency of HSP70-2 was significantly higher in DN group than in DN and NC group (χ2 =9.392, P<0.01, OR=1.782; χ2 =11.971, P<0.01, OR=2.153). The levels of MALB/Cr and BMI were significantly higher in G/G gene carriers than in A/A gene carriers (P<0.05). Conclusion The G/G genotype of HSP70-2(+1267) maybe related to susceptibility to DN and general obesity; G allele carrier may have increased risk of T2DM with DN.

Atropine ; therapeutic use ; Humans ; Organophosphate Poisoning ; Poisoning ; drug therapy ; Quinuclidines ; therapeutic use

Humans ; Neoplasms ; epidemiology ; etiology ; Translational Medical Research

Molecular Epidemiology ; Neoplasms ; epidemiology ; etiology ; genetics

OBJECTIVE: To observe the effect and mechanisms of Bauhinia championii flavones(BCF) on hypoxia/reoxygenation (H/R) myocardial cells of neoanatal rats. METHODS: The cardiomyocytes hypoxia/reoxygenation injury model was developed, and Bauhinia championii flavones was pretreated (final concentration as 50, 100, 200 mg·L-1 respectively). The morphological changes of cardiomyocytes were observed by invert microscope. ELISA was used to evaluate the activities of tumor necrosis factor alpha, the protein expression of Bcl-2, Bax and NF-κβ was observed by immunohisto-chemistry, and Annex v-FITC/PI staining was used to detect apoptosis rate. RESULTS: Compared with model group, Bauhinia championii flavones pretreatment eased cardiomyocytes injury, decreased the activities of TNF-α and iNO S, maintained the eNOS level, up-regulated the expression of Bcl-2, down-regulated Bax and NF-κβ, and inhibited cadiocyte apoptosis (P<0.01 or P<0.05). CONCLUSION: BCF has protective effects on hypoxia/reoxygenation injury, which are associated with adjusting iNOS and NF-κβ signal channel, up-regulating Bcl-2, down-regulating Bax and NF-κβ, and inhibiting cadiocyte apoptosis.

Accidents, Occupational ; Bromine ; poisoning ; Humans ; Hydrobromic Acid ; poisoning

Animals ; Arrhythmias, Cardiac ; chemically induced ; prevention & control ; Cats ; Endothelin-1 ; adverse effects ; Medulla Oblongata ; drug effects ; Metoprolol ; pharmacology ; gamma-Aminobutyric Acid ; pharmacology

Magnetotactic bacteria can orient and migrate along ambient geomagnetic field lines because of their intracellular magnetic particles ( referred as magnetosomes) , which comprise nanometer-sized, membrane-bound crystals of the magnetic iron minerals. Magnetosome formation is a mineralization process with very strict biological controls over the accumulation, transportation and nucleation in the cell. This paper describes the current progresses of magnetosome formation and the function of proteins involved in this biomineralization process.

Objective To investigate association between postural changes of blood pressure and carotid atherosclerosis in the elderly.Methods Standardized questionnaires,physical examination and biochemical blood tests were performed to acquire clinical characteristics of the participants.Presences of carotid plaques were identified by carotid ultrasound examination.Orthostatic hypotension (OH) and orthostatic hypertension (OHT) were defined according to the international consensus.Multivariable logistic regression analysis was performed to analyze the associations of carotid plaques with OH and OHT.Results 377 old people were finally included,of which 101 had OH and 33 had OHT.After full adjustment for possible confounders,old people with carotid plaques had significantly increased risk for OH as compared with those without carotid plaques (OR=2.27,95％ CI:1.32-3.90,P=0.003).Participants with bilateral carotid plaques were associated with significantly increased risk for OH (OR=3.45,95％CI:1.74 6.84,P=0.001),while the association between unilateral carotid plaques and OH was not significant (OR=1.71,95％ CI:0.88-3.32,P=0.112).No significant association was identified between carotid plaques (bilateral or unilateral) and OHT.Conclusions Presence of carotid plaques,particularly bilateral plaques,may be an independent risk factor for OH.