Arsenic Poisoning ; Child ; Female ; Humans ; Hypercalciuria ; complications

The bioactive principles contained in blueberries (Vaccinium) are various kind of anthocyanins (anthocyanidins, or phenolic aglycone, conjugated with sugar), chlorogenic acid, flavonids, alpha-linolenic acid, pterostilbene, resveratrol, and vitamins. After oral administration, anthocyanins can pass through blood-brain barrier and thus appear in various organs and brain. Improve visual function by increasing rhodopsin regeneration and ocular health is the earliest reported bioactivities of anthocyanin. Recent studies demonstrated the benefit of blueberries to prevent the age-related chronic diseases such as cancer, diabeties, hyperlipidemia, hypertension, neurodegeneration, obesity, and osteoporosis through its apoptosis, antioxidant, antiinflammation, and antiangiogenesis effects. Blueberries can eradicate microorganisms for the prevention of symptomatic urinary tract infections in women. Thus, blueberries are recognized as one of the most nutritious foods and cultivated worldwide. However, how to prolong the shelving time of fresh fruit, well utilize the leaf and stem to isolate the bioactive chemicals, improve quality consistency of juicy and dry products, all should be further concerned.
Aging ; drug effects ; Animals ; Anthocyanins ; isolation & purification ; pharmacokinetics ; pharmacology ; Anti-Inflammatory Agents ; pharmacology ; Antihypertensive Agents ; pharmacology ; Antineoplastic Agents, Phytogenic ; pharmacology ; Antioxidants ; pharmacology ; Blood-Brain Barrier ; Blueberry Plants ; chemistry ; Chlorogenic Acid ; isolation & purification ; pharmacology ; Humans ; Hypoglycemic Agents ; pharmacology ; Hypolipidemic Agents ; pharmacology ; Plant Preparations ; pharmacology ; Plants, Edible ; chemistry

Objective To investigate and compare the pharmacokinetics of midazolam in Chinese Korean and Han healthy volunteers after oral administration.Methods Nine healthy Chinese Korean volunteers and ten healthy Han volunteers were given 15 mg midazolam tablets.The concentration of midazolam in plasma was determined by HPLC method and the pharmacokinetic parameters were calculated by DAS 2.0.1 software.Results The pharmacokinetic parameters of midazolam in Chinese Korean and Han were as follow:t_(max) were(0.63±0.72)and(1.52±0.74)h,C_(max) were(189.03 4±82.05) and (103.11±26.37)μg·L~(-1),t_(1/2) were (3.82±2.33) and (2.96±0.77)h,AUC_(0-12) were (369.75±85.47) and (368.95±103.63)μg·h·L~(-1),AUC_(0-∞) were (403.29±124.28) and (397.29±124.06)μg·h·L~(-1),respectively. Conclusion There is large interindividual variabilities in pharmacokinetic parameters of Chinese Korean and Han healthy volunteers,after administration.There were double peaks in plasma concentration-time profile after oral administration.There is significant difference in the t_(max) and C_(max) between Chinese Korean and Han healthy volunteers.

OBJECTIVETo study the therapeutic effects of combined gene therapy of wild type p53 (wt-p53) and herpes simplex virus thymidine kinase (HSV-tk) gene on pleomorphic adenoma cells of salivary gland.

METHODSWild type p53 and HSV-tk gene were transfected into human pleomorphic adenoma cells of salivary gland by using recombinant adenovirus vector. The efficiency of transfection was checked and gene was expressed by RT-PCR methods. The cell inhibition after transfected was verified by light microscope and MTT.

RESULTSThe proliferation of the pleomorphic adenoma cells transfected wt-p53 and HSV-tk gene was inhibited and the cell survival rate decreased to 54% and 38% respectively in 5 days. However, when wt-p53 gene combined with HSV-tk/GCV system, the killing effects was significantly stronger (P < 0.05) and the cell survival rate decreased to 20%.

CONCLUSIONCombining p53 gene with HSV-tk/GCV system for gene therapy in pleomorphic adenoma cells of salivary gland is a valuable method.

Adenoma, Pleomorphic ; Antiviral Agents ; Cell Line, Tumor ; Cell Survival ; Ganciclovir ; Genes, p53 ; Genetic Therapy ; Genetic Vectors ; Humans ; Salivary Glands ; Simplexvirus ; Thymidine Kinase ; Transfection

OBJECTIVETo analyze the original mutated codon of p53 gene of salivary pleomorphic adenoma (SPA) and to evaluate the repair effects of wt-p53 on SPA cells.

METHODSFour cases of SPA were obtained from clinical fresh samples and SPA cells were separated and cultured, and then the cells were transduced by Ad-wt-p53. The cells and the corresponding tumor tissue DNA were extracted, PCR and single strand conformational polymorphism (SSCP) and DNA sequencing analysis were performed.

RESULTSPCR-SSCP analysis showed 3 out of 4 SPA with abnormal exon 8 and abnormal exon 6. DNA sequencing analysis showed that exon 6 point mutation was found at codon 203 (GTG-->GCG), poly-codon mutations were found in exon 8 at codon 272 (GTG-->GT square), 275 (TGT-->T square T), 276 (GCC--> square CC) and at codon 290 (CGC-->CGCC). After transduced by Ad-wt-p53, all of the mutated codons were repaired.

CONCLUSIONSp53 gene mutation involved many codons that occurred frequently in the tumorigenesis of SPA. Exogenous wt-p53 could compensate and repair all the mutated p53 codons of SPA cells. SPA cells transduced by Ad-wt-p53 showed the typical apoptosis.

Adenoma, Pleomorphic ; genetics ; DNA Repair ; Humans ; Mutation ; Polymorphism, Single-Stranded Conformational ; Salivary Gland Neoplasms ; genetics ; Transfection ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53 ; genetics

The clinical data of 2 children with refractory Mycoplasma pneumoniae pneumonia complicated with intracardiac thrombosis and pulmonary embolism, treated in Tianjin Children′s Hospital from July 2019 to January 2020, were analyzed retrospectively.One patient was an 8-year-old girl, who was admitted to the hospital mainly because of " fever for 5 days and cough for 2 days" . The other patient was a 7-year-old boy, who was admitted due to " intermittent fever with cough for 24 days and chest pain for 1 day" . Both children were complicated with elevated D-dimer levels and positive antiphospholipid antibody.During the treatment, right cardiac thrombosis and pulmonary embolism occurred in both cases, and the manifestations of thrombosis related symptoms were not typical.After the patients received anticoagulation treatment and thrombolytic therapy with urokinase, the cardiac thrombus dissipated and the pulmonary embolism improved.For refractory Mycoplasma pneumoniae pneumonia complicated with intracardiac thrombosis and pulmonary embolism, thrombolytic therapy can be applied to some children in addition to anticoagulant therapy.

Embryo technology, including super-ovulation, embryo transfer and embryo nucleus transfer, was a well-developed technology in 20th century. It has been widely used in animal science and veterinary and boomed livestock industry in China. Chinese livestock producer could gain high grade breeds in short time through embryo technology by the reason that embryo technology could make outstanding gene spread out in herd. With the help of embryo technology, rare animals could have a chance to extend their progeny in fast changing world. In this article, we briefly introduced the process of embryo transfer and application of embryo technology in China.

OBJECTIVETo investigate the effect of liquorice in functional modulation of intestinal P-glycoprotein (P-gp) in rats.

METHODSAn in vitro diffusion chamber system (Ussing chamber) was used to examine the direct effect of liquorice decoction on rhodamine 123 (a subtrate of P-gp) transport and evaluate the permeability of rhodamine 123 or fluorescein sodium through rat jejunum membranes after oral administration of liquorice decoction.

RESULTSDirect application of liquorice decoction did not obviously affect rhodamine 123 transport across the intestinal mucosa. Oral administration of liquorice decoction (10 g/kg, twice daily for a week) significantly increased the absorption of rhodamine 123 and also enhanced rhodamine 123 secretion across the jejunum mucosa. Liquorice had no obvious effect on the transport of CF across the jejunum mucosa.

CONCLUSIONLiquorice may slightly inhibit P-gp function in the intestinal mucosa to increase the intestinal absorption of rhodamine 123.

ATP-Binding Cassette, Sub-Family B, Member 1 ; antagonists & inhibitors ; metabolism ; Animals ; Glycyrrhiza ; Intestinal Absorption ; drug effects ; Intestinal Mucosa ; drug effects ; metabolism ; Intestines ; drug effects ; metabolism ; Male ; Plant Extracts ; administration & dosage ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Rhodamine 123 ; metabolism

BACKGROUNDOcclusal splints have been the preferred modalities in the management of myofascial temporomandibular disorders (TMDs), but now controversy exists in reporting whether they are successful for TMDs treatments. The aim of this study was to give objective evidence to the assessment of treatment effect of occlusal splints for myofascial TMDs patients by clinical assessments and surface electromyography (sEMG) measurements of masseter muscles (MM).

METHODSThirty-six patients (12 males and 24 females) aged 16 - 57 (38 ± 11) years participated in the study. All participants diagnosed with myofascial TMD were randomized into two groups (18 of each). Patients in the first group (A) were treated with occlusal splints for 1 month, while patients in the second group (B) were treated with placebo (non-occluding palatal) splints. Clinical assessments were performed at the beginning of the study and 1 month after treatment. sEMG measurements for MM were performed at mandibular postural position (MPP) and maximum intercuspal contacted position (ICP) 1 month after the treatment. The root mean square (RMS) and the median frequency (MF) as linear indices of sEMG data were used to demonstrate muscle activity and muscle fatigue. Data were analyzed by ANOVA and post hoc SNK test. The differences were considered significant at P < 0.05.

RESULTSIt was found that 89% of group A either completely recovered (39%) or clinically improved (50%), while only 22% of group B had a spontaneous improvement. sEMG analysis showed that at MPP, the mean of RMS value of MM in group A was lower than that of group B, which shows statistical differences (P < 0.01). At ICP, the RMS value of MM in group A was higher than that of group B, which shows statistical differences (P < 0.01). At MPP, MF value of MM in group A was higher than that of group B (P < 0.05). At ICP, MF value of MM was lower than that of group B (P < 0.01).

CONCLUSIONSOcclusal splint could eliminate or improve the signs and symptoms of TMD patients with myofascial pain. sEMG analysis indicates that the wearing of occlusal splints may reduce the degree of fatigue of the masticatory muscles. The splint therapy outcome has a correlation with the electromyographic changes in the masticatory muscles.

Adolescent ; Adult ; Double-Blind Method ; Electromyography ; Female ; Humans ; Male ; Middle Aged ; Myofascial Pain Syndromes ; physiopathology ; therapy ; Splints

Adult ; Calcaneus ; injuries ; surgery ; External Fixators ; Female ; Fracture Fixation ; Fractures, Bone ; surgery ; therapy ; Humans ; Male ; Middle Aged ; Musculoskeletal Manipulations ; Young Adult