Adult ; Aggressive Periodontitis ; drug therapy ; therapy ; Amoxicillin ; therapeutic use ; Anti-Bacterial Agents ; therapeutic use ; Anti-Infective Agents ; therapeutic use ; Combined Modality Therapy ; Dental Scaling ; Denture, Partial, Fixed ; Humans ; Male ; Metronidazole ; therapeutic use ; Periodontal Abscess ; drug therapy ; therapy ; Root Canal Therapy ; Tooth Extraction ; Toothbrushing

Objective To investigate the effects of different magnitudes of mechanical strain on proliferation and alkaline phosphatase (ALP) activity in mouse osteoblast-like cells (MC3T3-E1). Methods MC3T3-E1 cells were subjected to 0%, 6%, 12%, 18% elongation for 24h and 48h by using multi-passage cell stress loading system respectively. MTT colorimetric method was used to assess the proliferation of the cell, ALP activity was detected by ALP assay kit. Results The proliferation of MC3T3-E1 cells was increased significantly 24h and 48h after mechanical strain treatment concomitant with increasing stretching force (P

Adult ; Aged ; Aged, 80 and over ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Phytotherapy ; Pulmonary Disease, Chronic Obstructive ; complications ; therapy ; Silicosis ; complications ; therapy

As a protein originally found in plant pathogenic bacteria, transcription activator-like effectors (TALEs) can be fused with the cleaving domain of restriction endonuclease (For example Fok I) to form artificial nucleases named TALENs. These proteins are dependent on variable numbers of tandem Repeats of TALEs to recognize and bind DNA sequences. Each of these repeats consists of a set of approximately 34 amino acids, composed of about 32 conserved amino acids and 2 highly variable amino acids called repeat variant di-residues (RVDs). RVDs distinguish one TALE from another and can make TALEs have a simple cipher for the one-to-one recognition for proteins and DNA bases. Based on this, in theory, artificially constructed TALENs could recognize and break DNA sites specifically and arbitrarily to perform gene knockout, insertion or modification. We reviewed the development of this technology in multi-level and multi species, and its advantages and disadvantages compared with ZFNs and CRISPR/Cas technology. We also address its special advantages in industrial microbe breeding, vector construction, targeting precision, high efficiency of editing and biological safety.
Amino Acid Motifs ; Biotechnology ; DNA ; chemistry ; Endonucleases ; chemistry ; Tandem Repeat Sequences ; Trans-Activators ; chemistry

Objectives To study the impact of initial age of treatment on testicular morphology and function in male pa-tients with multiple pituitary hormone deficiency using human chorionic gonadotropin (hCG) and human menopausal gonadotro-pin (hMG). Methods Patients with multiple pituitary hormone deficiency were treated with hCG and hMG while keeping other hormone levels normal. Correlations among their testicular volume, follicle-stimulating hormone (FSH), luteinizing hormone (LH), and height, bone age were analyzed. Results After 6-month hCG and hMG treatment, the penis length of 54 male patients was significantly increased from (2.58 ± 0.69) cm to (4.19 ± 0.77) cm , and penis circumference was also increased from (3.71 ± 1.36) cm to (5.95 ± 1.26) cm;the testicular volume was increased from (1.76 ± 1.49) ml to (5.20±2.30) ml;height was increased from (147.01 ± 12.29) cm to (151.98 ± 11.52) cm and bone age was increased from (11.22 ± 2.71) years to (11.64 ± 2.72) years;the differences before and after treatment were statistically significant (all P<0.01). As the patients' age increased, their testicular volume and testosterone level increased slowly, and significant differences amongst each age group were found (P<0.05). The in-creased value of testicular volume, serum FSH and LH levels, and height growth tended to be negatively correlated to the initial age of therapy (r=-0.517~-0.334, P<0.05). Conclusions Early and proper treatment in male patients with multiple pituitary hormone deficiency using hCG and hMG improves testicular function and secondary sex characteristics.

Objective:To investigate the association of pretherapeutic neutrophil, lymphocyte, monocyte, and serum albumin levels with nasopharyngeal carcinoma (NPC) prognosis in 401 patients. Methods:This study involved 401 NPC patients recently diagnosed and admitted in Sun Yat-sen University Cancer Center, China. Laboratory variables, such as immunology-related parameters and albumin level prior to treatment, were analyzed. The overall survival and disease-free survival rates were determined using the Kaplan-Meier method and were then compared using the log-rank test. Univariate and multivariate analyses were performed using the Cox proportional hazards model to identify prognostic factors. Results:Patients with neutrophil counts>5.20×109/L (n=172) had significantly lower overall survival and disease-free survival rates compared with those with neutrophil counts≤5.20×109/L (n=229) (P=0.014, P=0.009). In the 401 NPC cases, patients with high albumin levels (>43.00 g/L;n=253) had significantly higher overall survival (P=0.000) and disease-free survival (P=0.006) rates compared with those with low albumin levels (≤43.00 g/L;n=148). Multivariate analysis showed that the neutrophil level is an in-dependent risk factor for disease-free survival, whereas the albumin level is a strong independent prognostic factor for overall survival. Conclusion:The pretherapeutic neutrophil and albumin levels are independent prognostic factors for survival in NPC patients.

Objective To review clinical characteristics and treatment of multiple endocrine neoplasia type 2A (MEN-2A).Methods The clinical data of 13 patients with MEN-2A admitted to our hospital between 1988 and 2011 were retrospectively reviewed.All 13 cases were diagnosed as pheochromocytoma with medullary thyroid carcinoma,presenting no hyperparathyroidism,including 8 cases who had medullary thyroid carcinoma before pheochromocytoma and 5 cases who had medullary thyroid carcinoma and pheochromocytoma simultaneously.All 13 cases underwent resection for pheochromocytoma; 9 cases had bilateral adrenal resection,including 4 cases undergoing laparoscopic resection for pheochromocytoma.Thyroidectomy with bilateral dissection of regional lymph nodes was performed in 10 patients,and nodule enucleation was performed in 3 remaining patients.Results Adrenal pathology reported pheochromocytoma in all cases,including 3 malignant cases.Thyroid pathology reported medullary thyroid carcinoma in all cases.All 13 patients were followed-up visit,10 cases survived and 3 died from distant metastasis of medullary thyroid carcinoma.Conclusions MEN-2A is a rare disease.Surgery is the only treatment for this disease ; when patients have both pheochromocytoma and medullary thyroid carcinoma,to first remove the pheochromocytoma is preferable.

BACKGROUND:Myofascial trigger points have been widely applied in clinical rehabilitation and tissue pain field in the United States and Europe countries, and they have been recognized as the common cause of clinical musculoskeletal pain, joint function limitation, tissue injuries and muscle fatigue by many physiotherapists abroad. However, in China, many experts stil have some mistaken ideas and limitations to understand the pathological mechanism and to diagnosis and treat myofascial trigger points. OBJECTIVE:From the aspects of the etiology, pathological mechanism, diagnosis and positioning, treatments, to elaborate the method issues and the clinical experience of treatments of myofascial trigger points. METHODS:PubMed, ScienceDirect, EBSCO and CNKI databases were searched by the keywords of “myofascial trigger points, myofascial pain syndrome” in Chinese and English, respectively, in the titles and abstract to retrieve relevant articles published from the time of database construction to August 2014. RESULTS AND CONCLUSION:It is concluded that a child has myofascial trigger points in some skeletal muscles after age of 4 years. The main causes of myofascial trigger points include issue trauma, the wrong posture, bone and joint degeneration, nutrition deficiency, mental stress, chronic infection and so on. The pathological mechanism of myofascial trigger points remains unknown, but what has been widely accepted is the integrated trigger point hypothesis introduced by Simons. And how to find and position myofascial trigger points is the key point to treat this disease successfuly. The application of myofascial trigger points techniques is important for the rehabilitation of clinical tissue pain and the occurrence and spread of bone and joint injuries, myofascitis, muscle pain, muscle fatigue and so on.

Objective To discuss the relevance between the serum prostate specific antigen (PSA) level and the prostatic cancer biopsy detection rate after tamsulosin treatment for patients with lower urinary tract symptoms and elevated PSA level.Methods 168 patients with lower urinary tract symptoms and elevated PSA level were divided into two groups according to the serum PSA level change after tamsulosin treatment:in the first group,serum PSA level decreased slightly (PSA≥4.0 ng/ml and PSA decrease＜20％);in the second group,serum PSA level decreased obviously (PSA＜4.0 ng/ml or PSA decrease≥20％).Tamsulosin treatment was given in 0.2 mg/d for two months.Prostate gland aspiration biopsy was performed at the end of tamsulosin treatment.Result For the 68 patients of the first group,after tamsulosin treatment,the tPSA level increased from (8.11 ±2.09)ng/ml to (9.05±3.13)ng/ml,in which 38 patients (55.88％,38/68) were confirmed as the prostatic cancer by pathology.For the 100 patients of the second group,after tamsulosin treatment,the tPSA level decreased from(7.80±3.79)ng/ml to (5.19±2.32)ng/ml,in which 6 patients (6％,6/100) was confirmed as the prostatic cancer by pathology.There was significant statistical differences of prostate aspiration biopsy detection rate between the two groups(x2=23.53,P＜0.05).For patients with lower urinary tract symptoms who received tamsulosin treatment,the sensibility of PSA increased to 86.4％,specificity increased to 75.8％,the rate of avoiding aspiration was 55.9％,and the rate of correct diagnosis was 78.5％.Conclusion Tamsulosin treatment can increase the prostatic cancer diagnostic positive rate and decrease the aspiration rate in patients with lower urinary tract symptoms and elevated serum PSA level in a certain extent.

Objective To evaluate clinical significance of laparoscopic adrenalectomy for treatment of primary aldosteronism.Methods From Jan.1999 to Dec.2009,227 patients(92 males and 135 females)with a confirmed diagnosis of primary aldosteronism underwent laparoscopic adrenalectomy.The median age was 42years old,ranging from 22 to 69 years old.The median disease duration was 4.6 yeas,ranging from 2 months to 15 years.5 cases underwent peritoneal laparoscopic adrenalectomy and 222 cases underwent retropefitoneal laparoscopic adrenalectomy.All cases had hypokalemia,hpertension,high plasma aldosterone and low plasma rennin preoperatively.Of all the cases,there were 205 cases with aldosterone-producing adenomas among whom 80 cases underwent total adrenalectomy and 125 cases underwent partial adrenalectomy.There were 22 cases with unilateral adrenal hyperplasia and all of them underwent total unilateral adrenalectomy.Results Procedures were successfully performed in all the 227 cases.The operation duration ranged from 15 to 156 min(39 min as the median)and the blood loss ranged from 5 to 220 ml(20 ml as the median).The hospitalization time ranged from 5 to 9 days (6.9±1.2 days as the median).All the cases were followed up from 6 months to 2 years(1.2 years as the median).Postoperative potassium level resumed normal in all cases.Blood pressure resumed normal in 180 cases(80%).No adrenocortieal insufficiency and any other complication occurred.Conclusion Retropreitoneal laparoscopic partial or total adrenalectomy for treatment of primary aldosteronism is a safe and feasible procedure.