OBJECTIVETo explore the molecular mechanism of dutasteride inhibiting fertility by studying its effects on the expressions of the epididymal epithelial junction proteins Claudin1 and β-catenin in rats.

METHODSSixteen 3-month-old SD male rats were equally divided into an experimental and a negative control group to be treated intragastrically with dutasteride at 40 mg/kg per day and the same dose of solvent, respectively, for 14 consecutive days. Then, the sperm motility and morphology of the rats were detected by computer-assisted sperm analysis, the serum levels of testosterone (T) and dihydrotestosterone (DHT) measured by ELISA, changes in the tight junction of epididymal cells observed under the transmission electron microscope, the protein and gene expressions of Claudin1 and β-catenin determined by RT-PCR and immunohistochemistry, and the conception rate of the mated female rats calculated.

RESULTSDutasteride significantly suppressed the serum DHT level, sperm motility, and fertility of the rats (P <0.05). Interspaces between epididymal epithelial cell tight junctions were observed, the volume of epididymal fluid obviously increased, and the expressions of Claudin1 and β-catenin gene and protein remarkably downregulated in the experimental rats (P <0.05).

CONCLUSIONDutasteride can significantly inhibit the fertility of male rats by reducing the serum DHT level, suppressing Claudin1 and β-catenin expressions, and damaging epididymal epithelial cell junctions.

Animals ; Azasteroids ; pharmacology ; Claudin-1 ; metabolism ; Dihydrotestosterone ; blood ; Dutasteride ; Epididymis ; drug effects ; metabolism ; Female ; Fertility ; drug effects ; Humans ; Intercellular Junctions ; drug effects ; Male ; Rats ; Rats, Sprague-Dawley ; Sperm Motility ; drug effects ; Testosterone ; blood ; Urological Agents ; pharmacology ; beta Catenin ; metabolism

Objective To provide medication references for children with new cryptococcal meningitis with nephrotic syndrome.Methods The clinical pharmacists participate in formulation of treatment plans,and monitor the curative effect of anti-infective treatment,intracranial pressure depressing,and nephrotic syndrome treatment during therapy.They should adjust the usage and dosage of nephrotoxic drugs by monitoring patients' renal function and electrolyte condition,and propose individualized drug administration advices according to patients' conditions and adverse reactions.Results and conclusion The anti-cryptococcus treatment was effective,the nephrotic syndrome was stable,the symptoms of intracranial hypertension were improved,hypokalemia and hypomagnesemia were corrected,and the renal function impairment was not aggravated.The clinical pharmacists' combining of pharmaceutical theory with clinical practice received clinicians'recognition,and promoted children's medication safety and rational drug use.

Objective To explore the role of clinical pharmacists in the pharmacological monitoring of children with severe juvenile dermatomyositis.Methods Clinical pharmacists participated in the formulation of treatment plans for a child with severe juvenile myositis.We monitored the curative effect of juvenile dermatomyositis treatment and anti-infec-tive treatment during therapy.We also monitored the condition of patient's liver function,renal function,electrolyte and infection,and proposed individualized drug administration advices according to patient's conditions.Results and conclusion The patient's condition was stable.The juvenile dermatomyositis treatment and anti-cryptococcus treatment were effective.Isotonic dehydration,hypocalcemia and hypokalemia were corrected.Liver function and renal function impairment were not aggravated.Clinical pharmacists participated in formulation of individualized treatment,and provided pharmaceutical care for children and medical workers,and promoted the safety,effectiveness and rationality of clinical therapy.

Objective To observe the risk factors of the short-term prognosis of anti-N-methyl-D-aspartic acid (anti-NMDAR) encephalitis.Methods The clinical data of 66 children with anti-NMDAR encephalitis was analyzed retrospectively,and the scores of modified Rankin scale (mRS) were used before and after treatment.According to the treatment results,the children with mRS less than or equal to 2 points were used as treatment group,those with mRS score more than 3 points were set as the control group.Single factor and multiple factor Logistic regression analysis were used to analyze the risk factors of poor prognosis.Results Of the 66 cases,39 had good prognosis and 27 had poor prognosis.The results of single factor analysis showed that age,days of hospitalization,epilepsy,dyskinesia,mRS scores score were associated with poor prognosis.Multiple factor Logistic regression analysis showed that age,epileptic seizures,and mRS scores before treatment were independent risk factors for the short-term prognosis of anti-NMDAR encephalitis.Conclusion Patients with anti-NMDAR encephalitis have small age,seizures and high mRS scores before treatment,which may predict poor prognosis in the near future.

To investigate the crucial role of particle size in the biological effects of nanoparticles, a series of mesoporous silica nanoparticles (MSNs) were prepared with particle size gradients (50, 100, 150, 200 nm) with the traditional Stober method and adjusting the type and ratio of the silica source. The correlation between toxicity and size-caused biological effects were then further examined both in vitro and in vivo. The results indicated that the prepared MSNs had a uniform size, good dispersal, and ordered mesoporous structure. Hemolytic toxicity was found to be independent of particle size. At the cellular level, MSNs with smaller particle sizes were more readily internalized by cells, which initiated to more intense oxidative stress, therefor inducing higher cytotoxicity, and apoptosis rate. In vivo studies demonstrated that MSNs primarily accumulated in the liver and kidneys of mice. Pharmacokinetic analysis revealed that larger MSNs were eliminated more efficiently by the urinary system than smaller MSNs. The mice's body weight monitoring, blood tests, and pathological sections of major organs indicated good biocompatibility for MSNs of different sizes. Animal welfare and the animal experimental protocols were strictly consistent with related ethics regulations of Zhejiang Chinese Medical University. Overall, this study prepared MSNs with a particle size gradient to investigate the correlation between toxicity and particle size using macrophages and endothelial cells. The study also examined the biosafety of MSNs with different particle sizes in vivo and in vitro, which could help to improve the safety design strategy of MSNs for drug delivery systems.

Objectives To use visualization method to analyze the relevant literature about prevention and treatment of obesity type 2 diabetes mellitus (T2DM) with TCM; To understand research hot spots and development trends of this field. Methods Computers were used to retrieve prevention and treatment of T2DM with TCM in CNKI. CiteSpaceV was used to visualize the authors, research institutes and keywords, and discussed their research hot spots, research frontiers, major research groups and trends. KNS6.6 was used to quantitatively analyzed included literature distribution characteristics, core citations, etc., and conducted visual display. Results After screening, 130 articles were included, involving 257 researchers and 6 research institutes, among which, TONG Xiao-lin, DONG Liu, ZHOU Li-bo, etc. were the main researchers. Guang'anmen Hospital of China Academy of Chinese Medical Sciences is the most important research institute, followed by Beijing University of Chinese Medicine, Changchun University of Chinese Medicine and Guangzhou University of Chinese Medicine. The main research directions included the diagnosis and treatment of obesity T2DM, acupuncture and moxibustion treatment, the mechanism of TCM intervention in inflammation. This study predicted exploration of the TCM pathogenesis of obesity T2DM and the construction of TCM clinical pathway may be the future research trends and hot spots. Conclusion Through visualization analysis, the main research directions in the field in recent 20 years, research hot spots, evolution veins and development trends can be understood quickly and intuitively, providing a basis for further research.

To investigate the effect of different initial processing methods on the quality of Gardenia and determine the best cooking time in gardenia processing through the determination of index components content. The contents of geniposide, crocetin Ⅰ and total iridoid glycosides in Gardenia were determined before storage, six months after storage and one year after storage. During storage, the contents of geniposide, crocetin Ⅰ and total iridoid glycosides in directly dried Gardenia were 1.68%, 0.45% and 6.45% respectively. The contents of geniposide, crocetin Ⅰ and total iridoid glycosides in Gardenia with different steaming time were 1.34%-0.5%, 0.28%-0.06% and 6.09%-1.59% respectively. The contents of geniposide, crocetin Ⅰ and total iridoid glycosides in Gardenia with different boiling time (adding alum)were 1.42%-0.41%, 0.35%-0.07% and 6.40%-1.65% respectively. The direct drying of Gardenia samples could not achieve the function of killing enzyme and protecting glycosides. The enzymes from degradation of the index components were basically destroyed after steaming time of 13 min or boiling (adding alum) time of 8 min, achieving the function of killing enzyme and protecting glycosides.

Objective:To explore the relationship between the polymorphisms of AHNAK2 gene rs12882641,rs28583515 and rs2582497 loci and coronary heart disease(CHD)in the population of Xinjiang.Materials:This study used a case-control method,a total of 602 patients who were hospitalized and underwent coronary angiogra-phy(CAG)at ourheart center from Jan 2019 to Dec 2021 were selected.According toCAG results,the patients were divided into CHD group(n=301)and non-CHD group(n=301).The AHNAK2 gene rs12882641,rs28583515 and rs2582497 loci were genotyped using the improved multiple ligase detection reaction(iMLDR)technique,and the relationship between AHNAK2 gene polymorphisms and CHD was analyzed.Results:Compared with non-CHD group,there was significant rise in the distribution frequencies of AC+CC genotypes(52.8%vs.61.1%,P= 0.040)at rs2582497 locus of the AHNAK2 gene under the dominant model;there was significant reduction in distri-bution frequency of the CC genotype(65.8%vs.53.8%)at the rs28583515 locus of the AHNAK2 gene,and signif-icant rise in distribution frequencies of CT+TT(34.2%vs.46.2%)under the dominant model,TT under the re-cessive model(0.7%vs.3.0%)and CT under the additive model(33.6%vs.43.2%)in CHD group,P＜0.05 or＜0.01.After adjusting for confounding factors,logistic regression analysis indicated that the dominant model of the rs28583515 locus remained an independent risk factor for CHD(OR=1.509,P=0.036).Conclusion:The AH-NAK2 gene rs28583515 locus is closely related to the occurrence and development of CHD in the Xinjiang popula-tion.The dominant model of the AHNAK2 gene rs28583515 locus is an independent risk factor for CHD.

OBJECTIVETo determine the prevalence of neuropsychiatric symptoms in dementia and normal elderly people living in the Chinese community of Beijing.

METHODSA cross-sectional study derived from the Beijing Dementia Cooperative Study was carried out a population survey was carried out on a total of 1540 participants aged 65 years and older living in Beijing city and rural areas. All the individuals and 373 demented elderly people completed a series of neuropsychological examination and the Neuropsychiatric Inventory (NPI).

RESULTSAmong the dementia participants, 49.33% had exhibited neuropsychiatric symptoms (35.66% rated as clinically significant), in which 80.4% reported 2 or more disturbances, with depression (23.86%), apathy (21.72%) and anxiety (20.38%) being most common. Of the 1540 normal individuals, 18.25% of them exhibited neuropsychiatric symptoms (6.49% rated as clinically significant), in which 53% reported 2 or more disturbances, with sleepless (10%), depression (8.9%) and anxiety (6.97%) being the most common.

CONCLUSIONTo our knowledge, this was the first multi-center study on neuropsychiatric disturbances in dementia and cognitive normal elderly people. Neuropsychiatric symptoms occurred mainly in persons with dementia and of clinical severity. Though the neuropsychiatric disturbances reported in cognitive normal individuals were lower and less serious compared to dementia, they should not be neglected. These finding suggested that a screening programme focusing on identifying these symptoms should be included in the physician's diagnostic tools for dementia.

Aged ; Aged, 80 and over ; Anxiety ; epidemiology ; China ; epidemiology ; Cross-Sectional Studies ; Dementia ; epidemiology ; psychology ; Depression ; epidemiology ; Female ; Humans ; Male ; Middle Aged ; Neuropsychological Tests ; Prevalence ; Sleep Initiation and Maintenance Disorders ; epidemiology

OBJECTIVETo explore demographic characteristics, current diagnosis and treatment patterns of chronic myelogenous leukemia (CML) patients in China.

METHODSData of hospitalized CML patients in 2005 whole year and outpatient information (July 1 through September 30, 2006) from 15 hospitals throughout China were analyzed.

RESULTSA total of 1824 CML cases were analyzed, including 722 inpatients and 1102 outpatients. The male/female ratio was 1.78:1. The median age at diagnosis was 40.02 (2.45 - 83.29) years old, 90.41% of the patients were diagnosed at chronic phase. Proportion of accelerated phase or blast crisis patients increased to 21.66% during study period. 93.20% of the patients received blood routine and bone marrow morphologic examination at diagnosis and in monitoring; 70.29% were performed cytogenetic analysis and 51.54% performed molecular measurement in addition. The most common therapy for CML treatment was hydroxycarbamide. The proportion of patients treated with imatinib and interferon was 37.45% and 25.55%, respectively. Of 722 inpatients, 164 (22.72%) received hemotopoietic stem cell transplantation (HSCT). The proportions of accelerated phase and blast crisis patients treated with imatinib were 48.28% and 48.42%, respectively, being significantly higher than that of chronic phase patients (35.9%) (P < 0.05). The mean imatinib dosage administered in the three phases patients did not differ significantly. Imatinib resistance rates were 6.87% and 16.28% for outpatient and inpatient, respectively. In the outpatient group, the primary resistance to imatinib occurred comparably to the secondary resistance (68.75%), while primary resistance was predominant in inpatient group (65.71%). The intolerance rates of imatinib for outpatient and inpatient were 3.21%, 11.63%, respectively. The majority of patients treated with imatinb were not monitored in time: 63.38% patients evaluated hematologic response after 3 months of treatment, proportions of patients received cytogenetic examination after 6 months and 12 months of treatment were 41.41% and 27.35%, respectively. Mean cost for HSCT was 213 092 +/- 125 890 RMB.

CONCLUSIONSCML in China tends to afflict younger population than in Western countries. Most patients were diagnosed in the chronic phase. Due to restriction of financial support, only one third of CML patients were treated with imatinib, and the majority of the treated were not monitored in time. Clinicians should pay attention to resistance and intolerance to imatinib treatment in accelerated phase or blast crisis patients.

Benzamides ; therapeutic use ; China ; Humans ; Imatinib Mesylate ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; drug therapy ; Piperazines ; therapeutic use ; Pyrimidines ; therapeutic use