Objective To compare the effectiveness and safety of semaglutide with dulaglutide in patients diagnosed with type 2 diabetes.Methods A multicenter retrospective cohort study was conducted to include patients with type 2 diabetes who received semaglutide or dulaglutide treatment at three hospitals between April 2021 and July 2023 in the study.The patients were divided into the semaglutide group(SEMA group)and the dulaglutide group(DULA group)based on their treatment.Propensity score matching was used to pair the two groups in a 1:1 ratio,aligning them based on baseline characteristics such as gender,age,body mass index,blood glucose levels,duration of diabetes,and complications.Various parameters including fasting blood glucose,2-hour postprandial blood glucose,glycosylated hemoglobin(HbA1c),serum creatinine,urea nitrogen levels,estimated glomerular filtration rate(eGFR),urinary albumin/creatinine ratio(UACR),and occurrences of adverse reactions were assessed at 3,6,9,and 12 months after the treatment.Results After propensity score matching,98 patients were included in both the SEMA and DULA groups,showing no statistically significant differences in baseline characteristics between the groups(P＞0.05).At each follow-up point,the fasting blood glucose,2-hour postprandial blood glucose,and HbA1c levels of both groups showed a significant decrease compared to the baseline(P≤0.05).The inter-group comparison revealed no statistically significant differences in the changes in fasting blood glucose,2-hour postprandial blood glucose,and HbA1c levels between the two groups(P＞0.05).At the 6th month,the SEMA group exhibited a statistically significant higher rate of HbA1c＜7％compared to the DULA group(P＜0.05).In the SEMA group,serum creatinine and urea nitrogen decreased significantly at the 6th month compared to baseline,while eGFR showed an increase at the 3rd and 6th month,and UACR decreased,all with statistical significance(P＜0.05).In the DULA group,there was a statistically significant increase in serum creatinine and decrease at the 3rd and 6th months in eGFR,respectively.Additionally,urea nitrogen levels decreased significantly at the 9th month,all differences were statistically significant(P＜0.05).The inter-group comparison revealed that at the 3rd and 6th month,the SEMA group exhibited a greater reduction in serum creatinine levels compared to the DULA group.Additionally,the SEMA group demonstrated a more pronounced increase in eGFR levels than the DULA group,with statistical significance(P＜0.05).At the 6th month,the SEMA group exhibited a significantly greater decrease in UACR and a significantly lower incidence of renal insufficiency compared to the DULA group(P＜0.05).There were no significant difference in the incidence of adverse reactions between the two groups(P＞0.05).Conclusion Semaglutide and dulaglutide can significantly improve blood glucose control,exhibit comparable effectiveness and safety in lowering blood glucose levels,and semaglutide has a potentially protective effect on renal function.

OBJECTIVES: To evaluate the immunogenicity and osteogenic ability of animal-derived bone graft material decellularized with supercritical carbon dioxide. METHODS: Porcine femurs were randomly divided into two groups after preliminary treatment, and decellularized with conventional method (control group) or supercritical carbon dioxide (experimental group). Allogenic demineralized bone matrix was used as positive control. Clearance rate of galactose-α-1, 3-galactose (α-Gal) antigen was determined by enzyme-linked immunosorbent assay and residual DNA was detected by a fluorescence method. Nine SPF-grade male athymic nude mice of 6 weeks old were randomly divided into experimental, control and positive control groups. Samples were implanted over biceps femoris muscle of athymic nude mice. The explants were collected 4 weeks post implantation. Hematoxylin and eosin (HE) staining and immunohistochemistry were applied to determine the osteogenic ability and bone tissue-associated protein expressions of the implants. RESULTS: The clearance rates of α-Gal antigen in the experimental group and the control group were (99.09±0.26)% and (30.18±2.02)%, respectively (t=58.67, P<0.01). The residual DNA of the experimental, control and positive control groups were (13.49±0.07), (15.20±0.21) and (14.70±0.17) ng/mg. The residual DNA in the experimental group was significantly lower than that in the control group (t=－13.41, P<0.01) and positive control group (t=－11.30, P<0.01). HE staining results showed that multiple bone formation centers with active osteogenesis and rich bone marrow were observed in experimental group 4 weeks after implantation, but only a small number of bone formation centers were observed in the control and positive control groups, with no obvious osteoblasts present. Immunohistochemistry results indicated that the expressions of alkaline phosphatase, Runt-related transcription factor 2, collagen typeⅠand osteocalcin in the experimental group showed an increasing trend compared with those in the control and positive control groups. CONCLUSIONS Compared with clinically used allogenic demineralized bone matrix and bone graft material decellularized with conventional method, bone graft material decellularized with supercritical carbon dioxide exhibits lower immunogenicity and better osteogenic ability.
Animals ; Mice ; Swine ; Male ; Bone Transplantation/methods* ; Mice, Nude ; Carbon Dioxide ; Osteogenesis/drug effects* ; Femur ; Bone Substitutes ; Tissue Engineering/methods*

Objective To establish and evaluate a method for determination of total arsenic in urine by test-tube rapid digestion hydride generation atomic fluorescence spectrometry.Methods After digestion of urine samples using graduated test-tube and graphite digestion apparatus,arsenic content in urine was determined with atomic fluorescence spectrometer.Then the test results were evaluated by using quality control measures,such as precision and accuracy experiments,and the results between different laboratories were reviewed and compared.Results The urinary arsenic was in a linear range of 0-0.300 mg/L,correlation coefficient (r) ＞ 0.999 3,detection limit was 0.000 21 mg/L,relative standard deviation (RSD) ≤4.62％ and the recoveries of standard addition were 93.9％-104.3％.The value of standard reference material measured was within the allowable range.The blind sample of the national urinary arsenic was qualified.Conclusions This method is suitable for large scale determination of urinary arsenic for its micro sample amount needed,less interference and strong practicability.The error results are in a controlled range.

Purpose To investigate the feasibility of texture analysis of breast contrastenhanced magnetic resonance imaging in differentiating non-puerperal mastitis and breast carcinoma with non-mass-like enhancement in order to prevent misdiagnosis of nonpuerperal mastitis.Materials and Methods In this retrospective study,the contrastenhanced MRI images of 42 female patients of invasive ductal carcinoma with non-masslike enhancement and 30 female patients of non-puerperal mastitis were analyzed.3234 texture features were generated from manually selected region of interest (ROI) of normal breast tissue and breast lesions.By means of genetic algorithm and linear discriminative analysis,10 texture features were selected based on their stability and accuracy in breast tissue classification.Results With these 10 features,the linear discriminative analysis classifiers had sensitivity of 92.9％ and specificity of 90.0％ in classifying two lesions,and accuracy of 89.6％ in classifying all three types of tissue.The result showed that texture analysis successfully differentiate non-puerperal mastitis and breast carcinoma with nonmass-like enhancement.Conclusion Texture analysis demonstrates the ability of differentiating invasive ductal carcinoma with non-mass-like enhancement,non-puerperal mastitis and normal breast tissue,and provides reliable results for clinical diagnosis.

Objective: To analyze the infection characteristics of patients in acute gastroenteritis outbreaks caused by noroviruses. Methods: Between April 2014 and March 2016, the clinical data and samples were collected from the patients in acute gastroenteritis outbreaks caused by noroviruses in Beijing. Noroviruses were detected and genotyped using real time RT-PCR, and the infection characteristics of norovirus gastroenteritis were analyzed using the descriptive epidemiological method. Results: A total of 1743 clinical diagnosed cases of norovirus gastroenteritis were collected, and children under 12 years old accounted for 77.68% (1354/1743). The detection rate of noroviruses was 73.98% (509/688). The detection rates of noroviruses in fecal, swab and vomitus samples were gradually decreased (χ²=67.798, P<0.001). Among these clinical diagnosed cases, vomiting was the most common symptom (93.98%), followed by abdominal pain (40.34%), diarrhea (30.35%) and fever (27.94%). The most common symptom of patients under 6 years old was vomiting(98.14%), whereas diarrhea was most common among over 18 years old patients (68.12%). With the increase of age of the patients, the incidence of vomiting was gradually decreased (χ²=100.913, P<0.001), whereas the incidence of diarrhea was gradually increased (χ²=261.164, P<0.001). There was no statistical difference in vomiting, diarrhea and abdominal pain symptoms between patients infected with genogroup Ⅰ and Ⅱ noroviruses, and patients infected with genogroup Ⅱ (34.49%, 149/432) had the higher incidence rate of fever than that of genogroup Ⅰ (18.18%, 14/77) (χ²=7.985, P<0.01). Conclusions Noroviruses mainly infected children under 12 years old in acute gastroentertis outbreaks. The most common symptom of patients with acute gastroenteritis caused by noroviruses was vomiting, and the incidences of vomiting and diarrhea were significantly correlated with age of the patients. Patients infected with genogroup Ⅱ had the higher incidence rate of fever than genogroup Ⅰ infection.

Objective To investigate the rotavirus contamination in commercial oysters in Beijing. Methods Between February 2014 and March 2015, a total of 280 oysters were collected in a large aquatic market in Beijing, and 5 oysters per stall were collected and classified as one sample.The samples were processed using three kinds of methods:direct treatment, PEG ( polyethylene glycol) 8 000 precipitation and proteinase K digestion-PEG 8 000 precipitation.Group A rotaviruses were detected by real time RT-PCR, and G/P genotyping was performed using the semi-nested RT-PCR.The VP7 and VP4 genes of positive samples were amplified, sequenced, and the phylogenetic tree was constructed using the maximum likelihood method with MEGA software ( version 6.06 ) .Results The detection rates of group A rotaviruses of three methods (direct treatment, PEG 8 000 precipitation and proteinase K digestion-PEG 8 000 precipitation) were 3.57%(2/56), 7.14%(4/56) and 5.38% (3/56), respectively.Rotaviruses were detected in 8 oysters samples ( 14.29%) , which were collected during autumn and winter . The G/P genotype combination included G9/P[8] (2 strains) and G9/P[N] (6 strains).The VP7 genes of 3 strains and the VP4 gene of one strain were sequenced successfully, and the phylogenetic analyses demonstrated that these strains had the highest similarity to those G9/P[8] strains prevailing in recent years in China.Conclusion Group A rotaviruses were detected in some commercial oysters during autumn and winter in Beijing, indicating a risk of foodborne illness.

Objective To find out the distribution of drinking-tea-borne fluorosis in the six ethnics in Qinghai Province, and to provide basic data for prevention and control of the disease. Methods In 2010, according to the requirement of “The National Surveillance Program of Drinking-Tea-borne Fluorosis”, six ethnics accounted for 99.59% of total population in Qinghai Province were investigated in 28 counties having brick-tea drinking habit. Three townships and a town in each county, two administrative villages(residents’ committee) in each township and town were chosen and 50 adults in each administrative village and residents ’ committee were selected to check skeletal fluorosis, dental fluorosis, urine fluoride and daily drinking amount of tea water. Five to six samples of drinking tea water were determined. Dental fluorosis was examined by Deans method; the fluoride content of brick-tea and urine were determined by fluoride ion selective electrode; the skeletal fluorosis was diagnosed based on “Endemic Osteofluorosis Clinical Indexing Diagnosis Standard”( WS 192-2008 ) . Results A total of 10 335 adults were surveyed, the number of Tibetan, Han, Hui, Mongolian, Tu and Salar ethnics were 4 972, 3 063, 1 196, 634, 235 and 235, respectively. The daily drinking amounts of tea water in Mongolian, Tibetan, Hui, Tu, Han and Salar ethnics were 2.53, 2.19, 1.74, 1.63, 1.22 and 1.07 L, respectively. Daily fluoride intakes in Tibetan, Mongolian, Tu, Hui, Han and Salar ethnics were 3.99, 2.78,2.27, 2.16, 1.78 and 1.28 mg, respectively. The medians of urinary fluoride concentration of the Tibetan, Tu, Hui, Han, Mongolian and Salar ethnics were 1.46, 1.19, 1.12, 0.98, 0.93 and 0.81 mg/L, respectively. The prevalence rates of dental fluorosis of the Hui, Han, Tibetan, Tu, Mongolian and Salar ethnics were 34.53%(413/1 196), 27.07%(829/3 063), 21.60%(1 074/4 972), 20.00%(47/235), 17.98%(114/634) and 6.38%(15/235), respectively. The incidence rates of clinical skeletal fluorosis of the Tibetan, Mongolian, Han, Hui, Tu and Salar ethnics were 13.42%(667/4 972), 11.04%(70/634), 9.31%(285/3 063), 7.61%(91/1 196), 5.53%(13/235) and 4.26%(10/235), respectively. Conclusions The distribution and prevalent status of drinking-tea-borne fluorosis in the six ethnics of Qinghai Province are different. Tibetan and Mongolian ethnics are the key population concerning the prevention and control of the disease.

Objective To summarize experience to prevent the main postoperative complications after hypospadias repairs. Method The clinical data of 189 cases of hypospadias repairs was from May 2005 to August 2010,retrospectively analyzed. Results One hundred and seventy-four cases were surgically cured by single-stage operation. All cases had been followed up for 4-36 (18.5 ± 5.5) months, the cases who had become adults were normal penile development and erectile function. Postoperative complications occurred in 15 cases,9 cases of them were urethral fistulas,6 cases were urethral strictures,all were cured or improved after symptomatic treatments. Conclusions Some methods are necessary to raise single-stage urethroplasty success rate and decrease the incidence of fistulas and strictures, such as preoperative antibiotic prophylaxis,appropriate procedure,intraoperative suprapublic urinary diversion,the good blood supply of the flap, modified enswathement, postoperative manage and nursing.

OBJECTIVE:To investigate the drugs that labeled with the warning remarks for pregnant and lactant women for reference of patients' rational drug use.METHODS:The package inserts of drugs commonly used in our hospital were investigated and the drugs with warming remarks for pregnant and lactant women were collected.RESULTS:A total of 186 package inserts were found to have warning remarks for pregnant and lactant women.CONCLUSION:Pharmacists should attach great importance to the rational use of drugs for pregnant and lactant women in drug dispending and tighten control on the prescriptions with contraindication in prescription check,and they should cooperate with clinicians in the rational use and choice of drugs based on package inserts.

OBJECTIVE:To improve package inserts of chemical drugs so as to promote safe,rational and effective use of chemical drugs.METHODS:A total of 558 package inserts of different chemical drugs commonly used in the clinic were collected from our hospital and other local hospitals and analyzed statistically based on the regulations stipulated by the "Norms of Package inserts of Drugs(trial)".RESULTS:Some important items such as pharmaco-toxicology,usage and dosage,pharmacokinetics etc in the package inserts of chemical drugs failed to meet the state standards,but the package inserts of the imported chemical drugs superior to those of the domestic ones,those of the injections superior to those of oral preparations,and those of oral preparations superior to those of external preparations.CONCLUSION:The package inserts of chemical drugs are far from perfect,which thus remain to be improved further.