As a new medium for communication,WeChat official accounts have become vital tools for public hospitals in disseminating health knowledge.With the advancement of smart hospitals,these accounts have gained significant attention as cru-cial platforms for health communication and brand promotion.This paper examines the WeChat official account(subscription ac-count)of a public hospital in Guangzhou,analyzing operational data from January 1,2022 to July 31,2024.It investigates the operational status,content production,and dissemination effects of various push content themes from a health communication per-spective.The study identifies existing issues and offers suggestions to enhance top-level design,address reader needs,and inno-vate new formats for science popularization.These measures are made to identify effective operational strategies and provide a ref-erence for public hospitals in the promotion of health-related knowledge through WeChat official accounts.

The hospital improved its pre-examination quality of laboratory medicine by means of setting up pre-examination quality management committee, full-course supervision of pre-examination process, and clarified responsibility system. Informationization means play multiple roles for the pre-examination quality, including full-course management, early warning and interception of unqualified sample. The coordinated application of multi-departments, multi-links and multi-measures can improve the pre-examination quality of laboratory medicine and ensure the quality of test results and the medical safety of patients.

Objective To investigate the Suidasia nesbitti breeding status in the ground dust flour collected in Qiqihaer City. Methods Totally,16 aliquots of ground dust flour were respectively collected from a college canteen and 15 households in Qiq-ihaer City. Then 10 g dust flour was taken from individual sample for isolation of the mites that were made of slide specimen,and the mites were identified and classified under a microscope. Results Acaroid mites were found in 15 of the 16 aliquots of sam-ples(detection rate being 93.8%),and 7 species,belonging to 6 genera under 3 families,were identified. A total of 561 heads of mites were isolated from 160 g samples,with an average breeding density of 3.51 heads/g. The most breeding mite was associ-ated with S. nesbitti. Conclusions Various species of mites are breeding in the ground dust flour in Qiqihaer City,and S. nesbit-ti occurs the most. These findings indicate that effective measures should be taken to prevent and control the harm associated with acaroid mite contamination.

Objective To optimize the extraction methods of mitochondrial genome DNA(mtDNA)of Oncomelania hupen-sis. Methods The pyrolysis,protein K variable-temperature digestion and high-concentration potassium acetate purification were applied to optimize the high-concentration-salt precipitation method,and then the optimized method was compared with two common extraction methods,the sucrose density gradient centrifugation method and traditional high-concentration-salt pre-cipitation method. The mtDNA samples were identified by using spectrophotometry,agarose gel electrophoresis and the amplifi-cation products of COX1. The nuclear DNA contamination was tested by the amplification products of ITS. Results The concen-tration and yield of the improved method was significantly higher than those of the traditional method(F=3032.65,10185.00, both P<0.01). The mtDNA samples extracted were essentially free of nuclear DNA and protein,meeting PCR,sequence analy-sis and other molecular biology research requirements. Conclusions The improved high-concentration-salt precipitation meth-od for isolating mtDNA is simple,and it has high yield and low cost. The extracted mtDNA can meet relevant analysis require-ments.

Objective To investigate whether there is Blomia tropicalis breeding in the flour warehouse of food factory in a civil aviation airport,and,if there is,to observe the morphological structure of the mite. Methods The flour samples were col-lected from the flour warehouse of food factory in a civil aviation airport. The breeding mites were isolated from the samples by di-rect microscopy and made into specimens to observe with a light microscope. Results Female Blomia tropicalis was found in the collected flour samples. Under the microscope,the mite was nearly spherical,and it had no tergum and claw. Its apodemeⅠwas developed and connected in the midline. The reproductive hole was located between the foot Ⅲand IV level and was cov-ered with a pair of oblique genital folds. The footⅢandⅣhad no solenoids. The copulatory pouch was a long,slightly curved tube,extending from the end of the mite. Conclusions Blomia tropicalis has been found in the flour warehouse of a food factory in the civil aviation airport. The main distinguishing feature of this mite is that it has no tergum,its feet have no pectinate inferi-or tarsus scales or claw,the feetⅠgenu has only one solenidia,and feetⅢandⅣhave no solenidias.

Objective To investigate the breeding quantity and average breeding density of Gohieria fuscus in the grand dust flour of a flourmill and explore the prevention and control measures. Methods A certain amount of grand dust flour was collect-ed from a flourmill,and it was sieved. The powder was placed into the glass pan,and the mites were sought out under an optical microscope and made of specimens. The mites were identified on the basis of literature. Results In this survey,400 g samples were collected from 4 habitats. The average breeding density of mites was 3516/g. The mite was identified as Gohieria fuscus. Conclusions Gohieria fuscus is one of the widely distributed stored mites. It impacts the stored food and reduces the quality of food. In addition,the mite affects human health. Therefore,the preventive measures should be taken.

Objective To study the effect of aerobic exercise and dietary intervention on lipid metabolism in metabolic syndrome rats, and investigate the possible mechanism mediated by peroxisome proliferator-activated receptorα(PPARα). Methods After one-week feed-ing, Sprague-Dawley rats were randomly divided into blank control group (CC group) and model group which were feed in high-fat-and-salt diet for 18 weeks to establish a metabolic syndrome model. Then, the metabolic syndrome rats were randomly divided into model control group (MC), the model high-fat diet group (MHE) and the model general died exercise group (ME). ME and MHE groups were forced to run on a treadmill for twelve weeks at the same time. The weight of perirenal fat, blood free fat acid (FFA), and blood lipid were determined. The expression of PPARαmRNA in myocardium was detected by RT-PCR. Western blotting was applied to detect the protein expression of PPARαin myocardium. Results Compared with CC group, MC group showed significant increase in body weight, perirenal fat weigh, FFA, and blood lipid (P<0.05), and significant decrease in PPARαmRNA and protein expression (P<0.01) in myocardium. Compared with MC group, ME and MHE groups showed significant decrease in body weight, perirenal fat weight, triglyceride (TG), and showed significant in-crease in high-density lipoprotein (HDL), and the expression of PPARαmRNA and protein in myocardium (P<0.05). Compared with MHE group, ME group showed decrease in low-density lipoprotein (LDL) (P<0.05), and increase in the expression of PPARαmRNA and protein (P<0.01). Conclusion Aerobic exercise may activate the expression of PPARα, enhance the utilization of fatty acid, reduce body mass and visceral fat mass, improve the dyslipidemia and then regulate lipid metabolism in metabolic syndrome rats.

Objective To observe the Tyrophagus palmarum and its hypopus in feed of Tenebrio molitor. Methods Feed samples were collected from T. molitor farms,and T. palmarum and its hypopus were separated from the samples by the vibra?tion sieve method and floating method. The glass specimens were prepared and T. palmarum and its hypopus were observed un?der an optical microscope. Results Under the light microscope,the skin of T. palmarum was smooth and bright,the color of legs and chelicerae was relatively dark,the length of dorsal seta d2 was 3?4 times longer than d1 and la;Theω1 in tarsus of legⅠ,Ⅱwas short rod,and its top was not tapered;the sucker plate in tarsus of legⅣlocated in the middle of the section. The hypopus was oblate,and there were two pairs of legs in front which extended to body. The rear end of hypopus became pointless and round,wrapping around a transparent and ossification skin. Conclusion Light microscopy shows the morphological charac?teristics of T. palmarum and its dormant body,providing the basis for identifying the hypopus.

Objective To investigate the prevalence of trematode Aspidogastrea in freshwater mussels in Anhui Province, China. Methods The freshwater mussels living in different water areas within Anhui territory were harvested and dissected from April to May,2015. Then the flukes were collected from the pericardial cavities of the clams into a petri dish containing small amount of saline. After rinsing,the flukes were transferred into a bottle containing 70%ethanol for following identification by staining of the specimens prepared as previous protocol. Results A total of 3 007 calms in 12 species,including Unio doug?lasiae(603),Acuticosta chinensis(90),Lamprotula caveat(150),Lamprotula leai(250),Lanceolaria grayana(47),An?odonta pacifica(60),Anodonta woodiana(350),Cuneopsis heudei(100),Solenaia oleivora(150),Cristaria plicata (567),Hyriopsis cumingii(550)and Arconaia lanceolata(90)were dissected,in which 1 467 mussels were infected with the trematode Aspidogastrea,with an infection rate of 48.79%(1 467/3 007). Totally,7 306 flukes belonging to 3 genera under the subclass of Aspidogastrea were isolated. These trematodes were genera of Aspidogaster,Lophotaspis and Cotylaspis. The in?fection density was from 1 to 128 capita for individual positive clam,with a mean infectiosity of 4.98(7306/1467)for each mus?sel. Conclusion The freshwater bivalves living in different water areas in Anhui Province are infected with the trematode Aspi?dogastrea. These flukes were identified as Aspidogaster sp. Lophotaspis sp. and Cotylaspis sp. belonging to subclass Aspidogas?tridae of family Aspidogastrea.

Objective To characterize the population dynamics and spatial distribution of Aleuroglyphus ovatus in the flour warehouse,so as to provide the basic evidence for improving the sampling guidelines that are essential for effective pest monitor?ing and management. Methods The samples from flour warehouses of four localities were collected,examined and counted for A. ovatus in every month in Wuhu City. The dispersion pattern target,Iwao m*/-x regression analysis and Taylor power method were used for analyzing the spatial distribution pattern of A. ovatus in the flour warehouses. Results The peaks of population dynamics of A. ovatus were discovered in July and September,respectively. The indexes of dispersion were as follows:I>0, CA>0,m*/-x >1. At the same time,the parameters in the equation of Iwao:m*=5.471+1.022-x (r=0.999)and Taylor:lgS2=0.697+1.111 lg-x (r=0.987)showed that the spatial distribution pattern of A. ovatus was assembled. Conclusion The peaks of population dynamics of A. ovatus in the flour warehouse are bimodal pattern ,and the spatial distribution pattern of A. ovatus is assembled.